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Can't install Firefox

Hello, I have downloaded Firefox installer but I couldn't install it. It's giving issue that you need to start over but when i start over again it gives the same issue. I… (read more)

Hello, I have downloaded Firefox installer but I couldn't install it. It's giving issue that you need to start over but when i start over again it gives the same issue. I have some pending work to do on my blog so I nee to install it ASAP. How can i fix it? Thanks

Asked by zwigzsq038 1 week ago

Last reply by AliceWyman 1 week ago

Error 15

For weeks I have been trying to find a solution to getting "Error 15" on certain websites when using Firefox. Opera and Edge have no problems with those sites, only Firef… (read more)

For weeks I have been trying to find a solution to getting "Error 15" on certain websites when using Firefox. Opera and Edge have no problems with those sites, only Firefox has problems. I have tried every "fix" that I can find on the Mozilla site and none of them work. Is there anything else I should try before I abandon Firefox? Could it be that Firefox is now unreliable under Win7 Pro 64-bit? If so I will have to abandon it because this computer cannot run Win10 or later.

Asked by response16 4 weeks ago

Last reply by cor-el 3 weeks ago

clean reinstall

I'm trying to perform the clean reinstall for Firefox on my computer. But, I see the instructions for the uninstall, Delete the Firefox installation folder, which is loca… (read more)

I'm trying to perform the clean reinstall for Firefox on my computer. But, I see the instructions for the uninstall, Delete the Firefox installation folder, which is located in one of these locations, by default:

   Windows: (Note: Check both folders.)
       C:\Program Files\Mozilla Firefox
       C:\Program Files (x86)\Mozilla Firefox 

Being I'm not computer wizard I had trouble finding the location of such folder. But when I accessed my program list in my windows program list I see a program named Mozilla maintenance service. When I click on that I see a format/window to "uninstall C:\Program Files (x86)\Mozilla Maintenance Service\." Is this the program/folder I need to uninstall to complete the proper instructions I need to perform a clean install? If so, when I delete it I then reinstall Firefox once again after the uninstall procedure? Is performing the uninstall procedure going to screw up my Firefox browser and my many bookmarks I have accumulated over the years? Can someone please help and explain? Thank you.

Asked by sciencemagic 3 hours ago

Last reply by 2MuchC0f33 2 hours ago

Pulp up at the bottom of the page?

Hi, Since yesterday, the addresses of https://**** pages, images, basically everything I put the pointer on appear at the bottom of my screen. I have not installed any ne… (read more)

Hi, Since yesterday, the addresses of https://**** pages, images, basically everything I put the pointer on appear at the bottom of my screen. I have not installed any new add-ons. How do I stop that annoying url popping up at the bottom of my screen? I tried "userChrome.css"- does not work Firefx ver. 109.0.1

Best regards

Marijan Prevolnik

Asked by Marijan 14 hours ago

Last reply by Dropa 12 hours ago

How can I change the font color and size of closed captions?

I have discovered that I prefer closed captions with the letters in yellow rather than white. How can I make this change in Firefox on a computer with the Windows OS. … (read more)

I have discovered that I prefer closed captions with the letters in yellow rather than white. How can I make this change in Firefox on a computer with the Windows OS. Also, I would like bigger closed captions.

Asked by h.jane.brink 1 day ago

Last reply by cor-el 1 day ago

restart in safe mode

Can someone explain the specific difference between restarting in safe mode and refresh Firefox? I had a very bad experience some years ago I believe refreshing Firefox? … (read more)

Can someone explain the specific difference between restarting in safe mode and refresh Firefox? I had a very bad experience some years ago I believe refreshing Firefox? But may have been a different Firefox procedure that caused all my trouble when I executed the procedure. Thank you.

Asked by sciencemagic 2 days ago

Last reply by Terry 2 days ago

How can I add a picture

I would like to add different pictures to the Fire Fox Home page from time to time. How can I add a picture to the home screen? I am switching from Google Chrome because … (read more)

I would like to add different pictures to the Fire Fox Home page from time to time. How can I add a picture to the home screen? I am switching from Google Chrome because Google is no longer supporting Windows 7 Pro 64 byte.

Asked by rdg_tech 5 days ago

Last reply by cor-el 5 days ago

WaterFox Help

I want to install an older version of WaterFox. (I have my reasons for doing so). I can download and install an older version, but investigating the version after the ins… (read more)

I want to install an older version of WaterFox. (I have my reasons for doing so). I can download and install an older version, but investigating the version after the install on Windows 7 reveals that it is NOT the version I downloaded. But is instead the newest version available. I have tried several uninstallers and deleted profiles and strings in the registry but nothing seems to help installing an older version. Can anyone offer some advice?

Asked by kkdj 5 days ago

Last reply by TyDraniu 5 days ago

Have a backup of sessionstore.jsonlz4 but cant get firefox to use it

So Amazon audible popped up a firefox session with a talking book after I shutdown. So firefox saved this session to restore next time. I shut down firefox while I: 1. I … (read more)

So Amazon audible popped up a firefox session with a talking book after I shutdown. So firefox saved this session to restore next time.

I shut down firefox while I:

1. I understand the file sessionstore.jsonlz4 in session store is a backup of the old tabs. So I saved it

2. I then copied it to the sessionstore folder under the profile. (I only have one folder under the profile folder so it must be the correct target). As a precaution, I also copied the file and renamed it previous.jsonlz4 and recovery.jsonlz4

But I cant get firefox to load it. Firefox stubbornly loads the tabs i just used and then creates new files called previous.jsonlz4 and recovery.jsonlz4 which overwrites my backed up files

So my question is how do I make firefox use the backup file I saved?

TIA/gary

Asked by stamp2 5 days ago

Last reply by cor-el 4 days ago

PLEASE ADD THIS NEW COOL FEATURE: highlight the tab that I was before i tabbed to current tab, but didnt closed previous

Hi, First of all, I should ask: Is there a such feature gained with settings or addons that highlights my previous tab, that I didn't closed, but moved from to current ta… (read more)

Hi,

First of all, I should ask: Is there a such feature gained with settings or addons that highlights my previous tab, that I didn't closed, but moved from to current tab?

For example: I have 20 tabs opened. And I'm lurking between them so I need to know what was the previous tab where I was before moved to the current tab.

If this feature does not exists I kindly offer to implement it.

Thanks

Asked by AmaMama45 6 days ago

Last reply by cor-el 6 days ago

Problem Loading Page

Hello Fire Fox, I am trying to access a personal account through a client portal & every time I try I get his error code: PR_END_OF_FILE_ERROR. I have cleared my cac… (read more)

Hello Fire Fox,

I am trying to access a personal account through a client portal & every time I try I get his error code: PR_END_OF_FILE_ERROR.

I have cleared my cache & every other trouble shooting option available to me. I need to access this client portal asap.

My HP computer is old 2014/15 & is running on Windows 7, does that have anything to do with my issue?

I have tried accessing this client portal on my new smartphone, newer Samsung tablet as well as another newer computer & I keep getting the same message.

Is it the website or my device?

Any advice is greatly appreciated, thank you.

Asked by jnrgonzo98 1 week ago

Last reply by Terry 1 week ago

How to reload Firefox bookmarks icons

Hi All my icons changed to a globe image yesterday. I don't know why. However, I discovered that if I opened a bookmark, the correct icon reappeared. With 30 bookmarks to… (read more)

Hi All my icons changed to a globe image yesterday. I don't know why. However, I discovered that if I opened a bookmark, the correct icon reappeared. With 30 bookmarks to work on, this seemed like a lot of time, BUT your can "Open All Bookmarks in Tabs" and if you wait long enough, all your icons will be restored to those which the websites supply.

Asked by Jim 1 week ago

Last reply by cor-el 5 days ago

Unicode Fonts are not rendered properly

Well this happened after a Firefox Update with that i also suspect that using a User.js can aslo cause it would you like to look for the problem pls. ```js // /* You may … (read more)

Well this happened after a Firefox Update with that i also suspect that using a User.js can aslo cause it would you like to look for the problem pls.

```js // /* You may copy+paste this file and use it as it is.

*
* If you make changes to your about:config while the program is running, the
* changes will be overwritten by the user.js when the application restarts.
*
* To make lasting changes to preferences, you will have to edit the user.js.
*/

/****************************************************************************

* Betterfox                                                                *
* "Ad meliora"                                                             *
* version: 107a1                                                           *
* url: https://github.com/yokoffing/Betterfox                              *
                                                                                                                                                        • /

/****************************************************************************

* SECTION: SECUREFOX                                                       *
                                                                                                                                                        • /

/** TRACKING PROTECTION ***/ user_pref("browser.contentblocking.category", "strict"); user_pref("privacy.trackingprotection.emailtracking.enabled", true); user_pref("urlclassifier.trackingSkipURLs", "*.reddit.com, *.twitter.com, *.twimg.com, *.tiktok.com"); user_pref("urlclassifier.features.socialtracking.skipURLs", "*.instagram.com, *.twitter.com, *.twimg.com"); user_pref("privacy.partition.always_partition_third_party_non_cookie_storage", true); user_pref("privacy.partition.always_partition_third_party_non_cookie_storage.exempt_sessionstorage", false); user_pref("beacon.enabled", false); user_pref("browser.uitour.enabled", false);

/** OCSP & CERTS / HPKP ***/ user_pref("security.OCSP.enabled", 0); user_pref("security.remote_settings.crlite_filters.enabled", true); user_pref("security.pki.crlite_mode", 2); user_pref("security.cert_pinning.enforcement_level", 2);

/** SSL / TLS ***/ user_pref("security.ssl.treat_unsafe_negotiation_as_broken", true); user_pref("browser.xul.error_pages.expert_bad_cert", true); user_pref("security.tls.enable_0rtt_data", false);

/** FONTS***/ user_pref("layout.css.font-visibility.private", 1); user_pref("layout.css.font-visibility.trackingprotection", 1);

/** RFP ***/ user_pref("browser.startup.blankWindow", false); user_pref("browser.display.use_system_colors", false);

/** DISK AVOIDANCE ***/ user_pref("browser.cache.disk.enable", false); user_pref("browser.privatebrowsing.forceMediaMemoryCache", true); user_pref("browser.sessionstore.privacy_level", 2); user_pref("browser.helperApps.deleteTempFileOnExit", true); user_pref("browser.pagethumbnails.capturing_disabled", true);

/** SHUTDOWN & SANITIZING ***/ user_pref("privacy.history.custom", true);

/** SPECULATIVE CONNECTIONS ***/ user_pref("network.http.speculative-parallel-limit", 0); user_pref("network.dns.disablePrefetch", true); user_pref("browser.urlbar.speculativeConnect.enabled", false); user_pref("browser.places.speculativeConnect.enabled", false); user_pref("network.prefetch-next", false); user_pref("network.predictor.enabled", false); user_pref("network.predictor.enable-prefetch", false);

/** SEARCH / URL BAR ***/ user_pref("browser.search.separatePrivateDefault.ui.enabled", true); user_pref("browser.urlbar.update2.engineAliasRefresh", true); user_pref("browser.search.suggest.enabled", false); user_pref("browser.urlbar.suggest.quicksuggest.sponsored", false); user_pref("browser.urlbar.suggest.quicksuggest.nonsponsored", false); user_pref("network.IDN_show_punycode", true);

/** HTTPS-ONLY MODE ***/ user_pref("dom.security.https_only_mode", true); user_pref("dom.security.https_only_mode_error_page_user_suggestions", true);

/** DNS-over-HTTPS (DOH) ***/ user_pref("network.dns.skipTRR-when-parental-control-enabled", false);

/** PROXY / SOCKS / IPv6 ***/ user_pref("network.proxy.socks_remote_dns", true); user_pref("network.file.disable_unc_paths", true); user_pref("network.gio.supported-protocols", "");

/** PASSWORDS AND AUTOFILL user_pref("signon.formlessCapture.enabled", false); user_pref("signon.privateBrowsingCapture.enabled", false); user_pref("signon.autofillForms", false); user_pref("signon.rememberSignons", false); user_pref("editor.truncate_user_pastes", false); ***/

/** ADDRESS + CREDIT CARD MANAGER ***/ user_pref("extensions.formautofill.addresses.enabled", false); user_pref("extensions.formautofill.creditCards.enabled", false); user_pref("extensions.formautofill.heuristics.enabled", false); user_pref("browser.formfill.enable", false);

/** MIXED CONTENT + CROSS-SITE ***/ user_pref("network.auth.subresource-http-auth-allow", 1); user_pref("pdfjs.enableScripting", false); user_pref("extensions.postDownloadThirdPartyPrompt", false); user_pref("permissions.delegation.enabled", false);

/** HEADERS / REFERERS ***/ user_pref("network.http.referer.XOriginTrimmingPolicy", 2);

/** CONTAINERS ***/ user_pref("privacy.userContext.ui.enabled", true);

/** WEBRTC ***/ user_pref("media.peerconnection.ice.proxy_only_if_behind_proxy", true); user_pref("media.peerconnection.ice.default_address_only", true);

/** GOOGLE SAFE BROWSING ***/ user_pref("browser.safebrowsing.malware.enabled", false); user_pref("browser.safebrowsing.phishing.enabled", false); user_pref("browser.safebrowsing.downloads.enabled", false); user_pref("browser.safebrowsing.downloads.remote.block_potentially_unwanted", false); user_pref("browser.safebrowsing.downloads.remote.block_uncommon", false); user_pref("browser.safebrowsing.blockedURIs.enabled", false);

/** MOZILLA ***/ user_pref("identity.fxaccounts.enabled", false); user_pref("browser.tabs.firefox-view", false); user_pref("dom.push.enabled", false); user_pref("permissions.default.desktop-notification", 2); user_pref("permissions.default.geo", 2); user_pref("geo.provider.network.url", "https://location.services.mozilla.com/v1/geolocate?key=%MOZILLA_API_KEY%"); user_pref("geo.provider.ms-windows-location", false); // WINDOWS user_pref("geo.provider.use_corelocation", false); // MAC user_pref("geo.provider.use_gpsd", false); // LINUX user_pref("geo.provider.use_geoclue", false); // LINUX user_pref("browser.region.update.enabled", false); user_pref("permissions.manager.defaultsUrl", ""); user_pref("webchannel.allowObject.urlWhitelist", "");

/** TELEMETRY ***/ user_pref("toolkit.telemetry.unified", false); user_pref("toolkit.telemetry.enabled", false); user_pref("toolkit.telemetry.server", "data:,"); user_pref("toolkit.telemetry.archive.enabled", false); user_pref("toolkit.telemetry.newProfilePing.enabled", false); user_pref("toolkit.telemetry.shutdownPingSender.enabled", false); user_pref("toolkit.telemetry.updatePing.enabled", false); user_pref("toolkit.telemetry.bhrPing.enabled", false); user_pref("toolkit.telemetry.firstShutdownPing.enabled", false); user_pref("toolkit.telemetry.coverage.opt-out", true); user_pref("toolkit.coverage.opt-out", true); user_pref("datareporting.healthreport.uploadEnabled", false); user_pref("datareporting.policy.dataSubmissionEnabled", false); user_pref("app.shield.optoutstudies.enabled", false); user_pref("browser.discovery.enabled", false); user_pref("breakpad.reportURL", ""); user_pref("browser.tabs.crashReporting.sendReport", false); user_pref("browser.crashReports.unsubmittedCheck.autoSubmit2", false); user_pref("captivedetect.canonicalURL", ""); user_pref("network.captive-portal-service.enabled", false); user_pref("network.connectivity-service.enabled", false); user_pref("default-browser-agent.enabled", false); user_pref("app.normandy.enabled", false); user_pref("app.normandy.api_url", ""); user_pref("browser.ping-centre.telemetry", false); user_pref("browser.newtabpage.activity-stream.feeds.telemetry", false); user_pref("browser.newtabpage.activity-stream.telemetry", false);

/****************************************************************************

* SECTION: PESKYFOX                                                        *
                                                                                                                                                        • /

/** MOZILLA UI ***/ user_pref("layout.css.prefers-color-scheme.content-override", 2); user_pref("toolkit.legacyUserProfileCustomizations.stylesheets", true); user_pref("app.update.suppressPrompts", true); user_pref("accessibility.force_disabled", 1); user_pref("browser.compactmode.show", true); user_pref("browser.privatebrowsing.vpnpromourl", ""); user_pref("extensions.getAddons.showPane", false); user_pref("extensions.htmlaboutaddons.recommendations.enabled", false); user_pref("browser.shell.checkDefaultBrowser", false); user_pref("browser.newtabpage.activity-stream.asrouter.userprefs.cfr.addons", false); user_pref("browser.newtabpage.activity-stream.asrouter.userprefs.cfr.features", false); user_pref("browser.preferences.moreFromMozilla", false); user_pref("browser.tabs.tabmanager.enabled", false); user_pref("browser.aboutwelcome.enabled", false); user_pref("findbar.highlightAll", true); user_pref("middlemouse.contentLoadURL", false); user_pref("browser.privatebrowsing.enable-new-indicator", false);

/** FULLSCREEN ***/ user_pref("full-screen-api.transition-duration.enter", "0 0"); user_pref("full-screen-api.transition-duration.leave", "0 0"); user_pref("full-screen-api.warning.delay", 0); user_pref("full-screen-api.warning.timeout", 0);

/** URL BAR ***/ user_pref("browser.urlbar.suggest.engines", false); user_pref("browser.urlbar.suggest.topsites", false); user_pref("browser.urlbar.suggest.calculator", true); user_pref("browser.urlbar.unitConversion.enabled", true);

/** NEW TAB PAGE ***/ user_pref("browser.newtabpage.activity-stream.feeds.topsites", false); user_pref("browser.newtabpage.activity-stream.feeds.section.topstories", false);

/*** POCKET ***/ user_pref("extensions.pocket.enabled", false);

/** DOWNLOADS ***/ user_pref("browser.download.useDownloadDir", false); user_pref("browser.download.alwaysOpenPanel", false); user_pref("browser.download.manager.addToRecentDocs", false); user_pref("browser.download.always_ask_before_handling_new_types", true);

/** PDF ***/ user_pref("browser.download.open_pdf_attachments_inline", true);

/** TAB BEHAVIOR ***/ user_pref("browser.link.open_newwindow.restriction", 0); user_pref("dom.disable_window_move_resize", true); user_pref("browser.tabs.loadBookmarksInTabs", true); user_pref("browser.bookmarks.openInTabClosesMenu", false); user_pref("clipboard.plainTextOnly", true); user_pref("dom.popup_allowed_events", "click dblclick"); user_pref("layout.css.has-selector.enabled", true);

/****************************************************************************

* SECTION: FASTFOX                                                         *
                                                                                                                                                        • /

user_pref("nglayout.initialpaint.delay", 0); user_pref("nglayout.initialpaint.delay_in_oopif", 0); user_pref("browser.startup.preXulSkeletonUI", false);

/** EXPERIMENTAL ***/ user_pref("layout.css.grid-template-masonry-value.enabled", true); user_pref("dom.enable_web_task_scheduling", true); user_pref("layout.css.animation-composition.enabled", true);

/** NETWORK ***/ user_pref("network.ssl_tokens_cache_capacity", 32768); user_pref("network.dnsCacheEntries", 20000); user_pref("network.dnsCacheExpiration", 3600); user_pref("network.dnsCacheExpirationGracePeriod", 240); user_pref("network.buffer.cache.size", 262144); user_pref("network.buffer.cache.count", 128);

/** GFX ***/ user_pref("gfx.webrender.all", true); user_pref("gfx.webrender.precache-shaders", true); user_pref("gfx.webrender.compositor", true); user_pref("gfx.canvas.accelerated", true); user_pref("gfx.canvas.accelerated.cache-items", 32768); user_pref("gfx.canvas.accelerated.cache-size", 4096); user_pref("gfx.content.skia-font-cache-size", 80); user_pref("image.cache.size", 10485760); user_pref("image.mem.decode_bytes_at_a_time", 131072); user_pref("image.mem.shared.unmap.min_expiration_ms", 120000); user_pref("layers.gpu-process.enabled", true); user_pref("media.memory_cache_max_size", 1048576); user_pref("media.memory_caches_combined_limit_kb", 2560000); user_pref("media.cache_size", 2048000); user_pref("media.cache_readahead_limit", 9000); user_pref("media.cache_resume_threshold", 6000);

/** CACHE ***/ user_pref("browser.cache.memory.max_entry_size", 153600);

/****************************************************************************

* SECTION: SMOOTHFOX                                                       *
                                                                                                                                                        • /

// see https://github.com/yokoffing/Betterfox/blob/master/Smoothfox.js // Enter your scrolling prefs below this line: // recommended for 60hz displays user_pref("general.smoothScroll", true); // DEFAULT user_pref("mousewheel.default.delta_multiplier_y", 275); // 250-500 /****************************************************************************

* START: MY OVERRIDES                                                      *
                                                                                                                                                        • /

// Enter your personal prefs below this line:

/****************************************************************************

* END: BETTERFOX                                                           *
                                                                                                                                                        • /

```

Asked by rajbirmodak9m 1 week ago

Last reply by Dropa 1 week ago

Firefox syncing not working (new hard drive installed)

Hello. I have two computers (A and B). the hard drive on the B died and i just had a new hard drive installed. i have installed firefox on B. the sync to my A does not wo… (read more)

Hello. I have two computers (A and B). the hard drive on the B died and i just had a new hard drive installed. i have installed firefox on B. the sync to my A does not work. firefox asks me to sign in. i sign in with my email address and password for B, this is not accepted. i then try signing in with A's password and that is not accepted either. when i check A's settings, it doesnt allow me to add B as a new device. Any help would be appreciated. Thanks

Asked by ltl257 1 week ago

Last reply by Paul 1 week ago