Firefox Support Forum

I Closed the browser and forgot that I had a private one open too. When I went to open the main Firefox window up, my previous session was wiped! I already tried the right clicking plus sign method to no avail. It just brings up the one I had after searching how to bring back the session and then accidentally closed the browser after. Any tips on how to get it back? Why does this happen just because you have a private window open??? Change that ASAP!

Autoplay media blocking does not work. I've tried to block autoplay on sites settings and also done this about:config fix without results.

   media.autoplay.default = 5 [0:allow;1:blockAudible;2:Prompt;5:blockAll]
   media.autoplay.blocking_policy = 2
   media.autoplay.allow-extension-background-pages = false
   media.autoplay.block-event.enabled = true '

Videos still start playing in some websites. I've noticed that when reloading the page, then autoplay blocking works.

Example: https://www.iltalehti.fi/formulat/a/35242327-7699-45a2-a1b5-75ff330a9d13 When i go to page first time, it shows on the left of address bar, that autoplay function is not even enabled (no autoplay block icon). When i reload/refresh the page, then it shows that autoplay is disabled and autoplay block is working properly (icon appears).

So it's only issue when visiting the page first time, if page is refreshed, no issues.

I'm using version 117.0.1 (64-bit) just installed Firefox Notes and now that is the only sidebar that appears, my bookmarked favourites sidebar has disappeared. All the help says go to 'View' check the sidebar for favourites if checked always on, fine but where is 'View' I have been through every dropdown i can find and there is no 'View'

Firefox Notes looks useful but not at the expense of losing my favourites sidebar.

Help please.

On a site with a menu along the top the rightmost item is missing, and only in Firefox, not Chrome or Edge. It happens on various pages with the same menu setup. I cleared cookies & cache, turned off extensions, no luck. See attached image. What could the problem be ?

Many bugs and crashes with Firefox

1. 1 Not able to install an automatic update, via the Menu Help --> About Firefox (or Thunderbird). This bug / problems sits already inside the earlier versions of Firefox and Thunderbird.

• A No new version is shown.
• B Firefox (or Thunderbird) tries to download / install this update, bug become someway corrupted and also stuck in this process.
• C Firefox (or Thunderbird) says to apply the update you must restart the program. After Firefox (or Thunderbird) was restarted, the program keeps trying installing or downloading this same or another update. I see a spinning circle only, no progress bar. Waiting, trying again later or another restart from Firefox (or Thunderbird) does nothing.

Only way to update Firefox is via https://www.mozilla.org/en-US/firefox/all/#product-desktop-release Which always shows the wrong language. Only way to update Thunderbird is via https://www.thunderbird.net/en-US/thunderbird/all/#product-desktop-release Here, I can click on letter from my language and download the setup package. After this update installation was done, the Help --> About (program name) window show the program is last version. But not seems not always the last version, like version x.x.01 to x.x.02, then tries to install this newer small version and gets stuck in the same loop or corruption.

• D You must use the setup package, because the installer doesn't work, likes to abort the installation and shows error messages about something gone wrong. Installer package is incomplete or damaged, not for current version and Windows.
• E For last newer versions, they seems not working anymore directly. The program can be restarted once or few times before it seems working. Until other bugs appear.
• F Always adding a new and faulty shortcut, but I have already a working shortcut on my Desktop. Icon hasn't logo from Firefox or Thunderbird, but the setup icon.
• G Sometimes you cannot start Firefox or Thunderbird, due the update did something wrong.

Missing file(s) and/or some strange error message after I clicked on the shortcut from the program. Another run from this "update" setup is needed. Remove a or all "Firefox.exe" from the Taskmanager list.

• H Bug that stops add-ones working. This can be happen due the general function / thing for add-ones inside Firefox crashes, become bugged or corrupted. 1 add-one or more add-ones take the others and stop working, become bugged or corrupted. Add-ones will forget things, their work / functions or do it halfway. Has something to do with the installation and/or data from add-ones. They seems to not having support or do anything about their problems.

1. 2 Random many crashes without any useful (error) messages, can be with closing the program itself.

Already from earlier versions of Firefox. And also Thunderbird too. This bug seems to sit deep inside the programs. I should be to use Firefox, Thunderbird, Notepad together, with having a some folders open. Switching between them can be annoying slow. Takes longer time be before responding. I'm seeing empty white or black windows. Only last selected section is visible, has the text and smaller pictures. I can have Firefox and Thunderbird left open for hours and later finding one or both programs are closed by itself. No reason, no permission given to do that. Add a new tab or click on a current site, there is no (fast) respond. Same for buttons, filters and filling in forms on a site. One program can pull the other program in closing to when the one is crashing. Also Windows will show several error messages about programs are using to much memory and must be closed. If this has programs listed, then Firefox seems to appear most here of the programs I'm using.

Updating doesn't fix anything Using the safe mode and new profiles are no long time solutions, every time anything is gone or nog working better.

It seems you must have 2 profiles running at same time when you want read something and not switching back between every minute or so. If 1 is near crashing, you have still the other one running.

1. 3 Why I'm seeing 20x to 72x a Firefox.exe in my Taskmanager? They takes a lot of memory, showing different sizes. I started Firefox once. This is not needed.

1. 4 Some sites seems to not work in Firefox or takes longer time.

Same for responding on clicking, using filters, buttons and sending forms. Clicking on those (annoying) accept (popup) windows. Unable to login or confirm an (security) action like this with a word or number given via e-mail. Might be something for the site. When you need to use Private Browsing for this.

1. 5 Icons from installed add-ones don't appear in main bar, at right side. How to use them? Before they did.

1. 6 Site using third party host sites are slow and mostly don't work. Connection errors.

"Seems fine here, but something with you". Refresh page doesn't fix it. Wait and try again later, how long? Firefox should block these sites.

1. 7 After updating to Firefox version 115.0.2 and continue my last session, there are appear several new bugs.

• A I cannot longer visit sites. Even earlier visited sites don't load. Firefox keeps stuck in loading or receiving site info data. Sites don't appear, just an empty (white) page. Also about:support doesn't work. Strangely, I can visit Google.com but not open any site from there. I tried Private Browsing, so no add-one can do something with this.

I had Firefox running for some hours, these sites are still stuck in "loading" or something else.

• B Right click to open a site or page in a new tab doesn't longer work. Right click menu appears, but action will not be done. Which can be strange at top, missing or changed items.

• C Same to copy line of text or picture, action isn't longer "remembered".

Now, I created again a new profile and again this doesn't fix them. Even more bugs and stranger. Again lost everything, settings, sites, installing dictionaries and add-ones. Stupid.

• C1 I can visit websites, but with some strange things, not always working fine.

That makes it to post my problems here.

• C2 Cannot longer type keywords in the addressbar and after pressing Enter, you should visit Google with search results. Firefox thinks the given keyword is a not existing website.

In Settings (via about:preferences#search), there are no search engines (Google, Wikipedia, ect) in the list, who should be there by default. Also there's no default search engine selected, the list therefor is small and empty.

• C3 Yet visited near 10 sites, who I cannot visit any of the sites with my other long time using profile. Then Firefox crashed by random, white empty window. Windows adds not responding at end of the program's title bar. I could restart Firefox after that, get the "continue after a crash" tab and revisit any of these sites in their opened tabs.

• C4 A site keeps saying cookies are disabled / denied, while minimal are accepted when some of that stupid (popup) windows did show. This means: Some stupid messages don't disappear after clicking "OK", the "X" or close buttons / links. Site might not work fine or on some parts. Something can follow you browsing through the site. Not able to visit that site or part.

• C5 A site keeps saying there is an ad-blocker installed, but there is no add-one like that installed. This means: Stupid messages like these keep appearing; site cannot work fine; you cannot visit the site due some invisible wall or blocking thing. Some can follow you browsing through the site. This is very annoying.

• C6 With one profile I cannot longer open sites who worked before. Keeps loading, shows URL in addressbar and on the tab.

And the about: .... pages. While with a new profile I can visit those sites, but right click menu is bugged.

• Cannot open site or page in new tab. Only on Google based sites are working for unknown reasons, but not YouTube.
• Missing items or I can see more gray things and lines.
• Cannot copy selected text. Stil having old or wrong text.
• Cannot Search with Google, this option is missing.
• Cannot see the source code from the page, due action is not happen.
• On sites that are working you can only read that current content. Can open links in new tabs, but their pages are empty / white, keep loading forever.
• A few sites don't load and still giving a empty page. Loading takes longer then needed. For same site.
• Use Google by typing the keyword in the addressbar doesn't visit Google site, but Firefox thinks the site doesn't exist, is wrong typed. You must go to Google.com and typing the keyword in the textbox here.
• If a site worked first, then later it cannot working longer, keeps stuck in loading and showing a empty white page / tab.
• Login for some sites is not longer possible, email send with security word or number doesn't appear. I can send myself a test e-mail to this e-mail address. Waited the time enough and made a new attempt, still the same.

Windows PC. Firefox version 117.0 x64. Via Help --> About Firefox, because about:support doesn't show the version and build.

Firefox tabs keep crashing repeatedly and sporadically. I had the most recent version on my mac. I have a MacBook Pro (13-inch, Mid 2012) I restarted Firefox various times, restarted the computer, tried troublehsooting mode, uninstalled Firefox and installed 115.2.1esr . Problem continues even in troubleshooting mode.

Submitted Crash Reports Report ID Date Submitted

bp-1b452dba-30bd-4e0e-a563-dbece0230924 9/23/23, 9:00 PM View bp-d21e08ee-e773-48a2-b6f8-554e30230923 9/23/23, 5:01 PM View bp-9631549a-86e3-44c9-900f-187c90230924 9/23/23, 9:50 PM View bp-24f8084e-d645-4d97-89bb-8b3510230924 9/23/23, 9:50 PM View bp-6e2251a4-e97a-4a01-9bdc-13ed70230924 9/23/23, 9:50 PM View bp-25c98fb7-0648-4a5c-a04e-9c4b30230924 9/23/23, 9:50 PM View bp-900e5198-164c-4bce-b0f5-b17690230924 9/23/23, 9:50 PM View bp-78224948-2c5d-41ec-9e41-6e8ff0230924 9/23/23, 9:50 PM View bp-6e5050fa-5461-42c9-881b-c06f60230924 9/23/23, 9:50 PM View bp-56731ce3-9ec1-46ff-a371-19c210230924 9/23/23, 9:50 PM View bp-f188afe9-d1ea-4a4b-824e-946c00230924 9/23/23, 9:50 PM View bp-03cb21b7-574f-44b4-94f4-35ea50230924 9/23/23, 9:50 PM View bp-9174c089-5d56-4d5d-88bb-e9ee10230924 9/23/23, 9:50 PM View bp-a39e0799-8786-49de-815b-b8d5b0230924 9/23/23, 9:50 PM View bp-014d14f6-f492-4c79-8d72-ba4370230924 9/23/23, 9:50 PM View bp-3b2b7faa-f9b6-4495-b2d4-cfce30230924 9/23/23, 9:50 PM View bp-c3431f6b-6706-4afa-bebb-b0b250230924 9/23/23, 9:50 PM View

I have a good 1080p monitor, which I can set up in either orientation. I have a hard time finding monitors which meet my accessibility needs, so a square/squarer monitor or a 2nd monitor would be expensive.

I have tried setting it up in vertical mode, to make it easier to read pdfs and to write. And ideally, to make it easier to avoid sidebars and/or move them away above the main content where they're less likely to trigger as many @##$% migraines.

I've noticed that most websites are designed for the horizontal layout. Elements disappear off the right edge, sometims with a horizontal scrollbar to reach them, sometimes without. Is there a trick to get miost or all websites to fit?

I use about:config fixes, add-ons, and user css to try to increase font sizes, switch colors, block animation, and reduce frame rates to completely block "smooth" animation. I can't do without these, so I don't think I could adapt the mobile version to my needs.

I've noticed *many* other problems in other apps, but if I can get all these websites working in Firefox, I can probably sort out the other problems elsewhere.

When logged in to the Shopify Website (admin page) using Firefox browser, attempt to click any link on the page automatically makes the page disappear and re-loops to my Login Page. I've worked with Shopify's Tech team and their investigation suggested...1st-remove cookies and cache on Firefox (did not work), 2nd-they tested their site and came back with no problems, everything works, 3rd-Try using Google Chrome browser to see if I would experience same problem of re-looping to my Login Page, everything works...no-re-looping to my Login Page and every link on the page works. On Shopify's Tech team recommendation as well as my desire to remain with Firefox browser, I need to get this problem of "page disappearing/re-looping to Login Page" on Shopify website fixed. I don't know how to do this. Login - 0b799d.myshopify.com I have reviewed some of the voluminus content on Mozilla Firefox's site and am totally confused with all the jargon/technical nomenclature. I need help! Thank you, Ken H kehi9780@gmail.com 9/23/23

Firefox 117.0.1 (64 bit) Build 20230912013654 Windows 10 Home - Version 22H2 OS build 19045.3448 The link to download my Sears credit card statement in pdf form has disappeared when accessing the website (https://citiretailservices.citibankonline.com) with Firefox. It still appears and works normally when the website is accessed with Chrome. I have the uBlock Origin extension installed on Firefox, but it is disabled on the Sears website. Screencaps attached.

Using Firefox 17.0.1 on MacOS Ventura 13.6 on my 2017 iMac I am unable to connect to the internet while using Private Internet Access (PIA) VPN. All was working normally until I installed MacOS Ventura 13.6 yesterday. The VPN works normally when using Chrome or Safari. I have tried changing my network proxy setting without any luck. The default setting is "Use System Settings", using No Proxy or Auto Detect Proxy doesn't help. I don't see a switch for Enable DNS over HTTPS. All works fine when the VPN is disabled. I tried deleting the VPN a couple of times then reinstalling but that didn't help.

What am I missing here? I have used this VPN for years without any issues & it worked on Firefox until I installed MacOS 13.6...... using 13.5 I had no problems. Any suggestions or thoughts would be appreciated.

Thanks...... Brad

Hi, I get the below error message when trying to login to visma.net (for work).

json.parse unexpected character at line 1 column 1 of the JSON data

On this note I have a previous error, loggin in to this site that was fixed by a support member (• accessibility.blockautorefresh = false), but I have the above hurdle left. I can get past it by clicking backspace but thought there might be a better solution - maybe some other setting I can adjust similar to the first fix I got help with.

The web address for this error message shows as: https://api.home.visma.com/home/rest/sso/login

Kindly Eva-Marie

I can not access for days my bank account at truist.com. It shows it is loading but never does. I CAN access from any other browser want to use! Truist says it is a Firefox browser issue.

Dear Sir/Madam:

I am using Firefox Browser 102.15.1esr (64-bit) on a MacBook Pro Ventura 13.5.2.

I have been using the www.dictionary.com website for a long time, but recently when I attempt to go there, I keep getting the error message as follows:

Unexpected Application Error! FM.findLast is not a function

WM@https://www.dictionary.com/client.e12a2de6.js:36:305976 $o@https://www.dictionary.com/client.e12a2de6.js:1:26519 ka@https://www.dictionary.com/vendor.60d89d9a.js:1:864941 xu@https://www.dictionary.com/vendor.60d89d9a.js:1:921923 bc@https://www.dictionary.com/vendor.60d89d9a.js:1:910907 yc@https://www.dictionary.com/vendor.60d89d9a.js:1:910835 vc@https://www.dictionary.com/vendor.60d89d9a.js:1:910696 ic@https://www.dictionary.com/vendor.60d89d9a.js:1:907503 oc@https://www.dictionary.com/vendor.60d89d9a.js:1:906055 E@https://www.dictionary.com/vendor.60d89d9a.js:1:996565 P@https://www.dictionary.com/vendor.60d89d9a.js:1:997096

I tried clearing caches under Privacy & Security, but the problem persists.

(Meanwhile, I can visit www.dictionary.com on Safari and Google Chrome.)

Could you please let me know what is going on?

Thank you,

Roland

I'm running 115.2.1esr x64 bit on Windows 7 pro. games on Facebook will not load I get 'Your browser does not support graphics API "WebGL2" error'.

In 'about:config' shows GL2 is enabled, yet Facebook games works with Google Chrome and MS Edge browsers, this seems to point to a Firefox issue.

I removed Firefox entirely, cleaning the registry etc, installed the latest version and get the same result.

Can anyone throw light on this? If need be I'll enclose

the troubleshooting info. 

Thanks, Dave

I just purchased bose 700s and I can hear noises for a fraction of a second every time I move the video forward beyond what is already in the buffer. On chrome the scrubbing is perfectly fine.

It is really annoying, any help? Thanks!

pd. I noticed this doesn't happen with another pair of headphones so the 700s in themselves play a factor. However it never happens when using chrome so I guess is the combination of the two-

I have the same issue as stated in https://support.mozilla.org/en-US/questions/1390122?page=3

How does it come that it is still present in 117? Why is there no official guide or warning about this issue? I am forced to use Portable 101 where there are no such bugs. The solution in the thread is unclear and points to Microsoft, which is ridiculous. The question is how to solve that Mozilla's bug?

Following this guide

Added some extensions (core/distribution/extensions), added autoconfig (js in core/defaults/prefs and cfg in core), put a user.js in core/defaults/profile with a userchrome.css in core/defaults/profile/chrome)

Then repackaged (step 4), did step 5 and 6 however when the newly formed installer is run I get a 7-zip error saying "the system cannot find the file specified". The originally installer works so it must be something that I am doing

So, here's the story:

My browser crashed while watching a video and writing a particularly lengthy YouTube comment on it. Knowing that I have been able to recover in-progress Reddit comments after a crash from the sessionstore-backups so long as I was on the page at the time of the crash, I know that at least one site saves all in-progress comments to that, and I highly suspect that is where in-progress Wikipedia edits are kept, I (wanting as much data as possible for as good of a recovery chance as possible) immediately copied all my Profile files, totalling more than 1.6 GB, to a non-volatile folder.

As I had done before, I took the most recent sessionstore-backups file (dated to the exact minute of the crash), forced it through the Session History Scrounger to decompress it, and then mass-replaced the document's \ns with proper newlines in Notepad++, which used to make the file more readable.

This time, it didn't. They must have changed the json newline formatting used between at least late April and now. And more importantly, when I searched through the file for keywords I used in the comment, I couldn't find it. Simply, it appears that in-progress YouTube comments aren't stored in that file.

So, where are they stored? Are they in any vaguely human-readable file (or file that can with some ease be converted into something vaguely human-readable)? Can I somehow revive a "zombie session" using just archived Profile folder data to copy it out of? Or should I just give up and rewrite the comment from scratch?

NOTE 1: This is adapted from a previous post made with an associated account on Reddit. As I fear using Firefox until I get this problem resolved due to the possible loss in ability to recover other data if I do so, I figure that giving the problem more attention here would be beneficial in resolving it more quickly.

NOTE 2: Also, to clarify, I don't need to restore the session and have the comment re-appear; I'd be fine with locating it in a text editor or similar program so I could copy it back into the submission box once the session is restored.

When I upgraded to the latest version of Firefox (September 12, 2023 release - 117.0.1 (64-bit)). I could not connect to the Internet with Firefox (Default Browser for Windows 10). I could connect to the Internet with Google Chrome and Microsoft Edge. After several hours of troubleshooting, I discovered that I had to: (1) click the Firefox menu button, (2) click Help, (3) select More Troubleshooting Information, (4) click Refresh Firefox ..., and (5) then click Refresh Firefox in the confirmation window that opens. After that Firefox closes to refresh itself. Then I can use Firefox to connect.

Please explain why must I go through this process now, in order to get Internet connection? Additionally, it took me a few hours to discover this process. It was NOT easy to find.

Is there another process that is more straight-forward?

Thank you! Hw Payne hwpayne@gmail.com