Firefox Community Forum

I view a lot of pdf documents via firefox, the light gray background makes my eyes and head hurt after prolonged usage. In the past I found a solution on this forum that advised to set pdfjs.viewerCssTheme to "2" in about:config. This set the background of pdf viewer to black/dark gray. This has worked for years until recently when the pdf viewer switched to light mode again (pic 1). I checked the about:config settings for pdfjs.viewerCssTheme but there appears to be no change. I tried restarting the browser, setting the theme to 0 and to 2 again, updating browser. Sadly the theme is still light gray. Is there a way to change it again? The desired outcome is in pic 2. I do NOT want to change the color of the pdf pages themselves.

There is a problem logging into Disqus. (disqus.com and disquscdn.com)

This is affecting Linux and Windows installations.

Page I'm having problems at www.lawyersgunsmoneyblog.com

I have used the troubleshooting mode and caches have been cleared and all extension disabled with no luck.

Other browsers are functional. The log in doesn't appear at all:

Using Firefox View, I am unable to view my tabs from other devices after setting up Sync. It is saying Check your internet connection. If you’re using a firewall or proxy, check that Firefox has permission to access the web. as if I don't have a correctly configured connection. However I indeed do and am able to browse the web without any issues. I should mention that I'm running the latest stable flatpak and I'm wondering if this could be related but I have no idea how to manipulate the flatpak to make this work.

I've got my "homepage and new windows" setting set up with several "ext+container links so that my selected websites open in their respective containers : e.g. ext+container:name=Personal&url=https%3A%2F%2Fwww.facebook.com%2F%3Fsk%3Dh_nor

I open facebook in 2 seperate containers so that I can maintain 2 seperate personalities under facebook - e.g. I am a group admin within one, just a group member in another.

I have 2 urls defined in my "homepage and new windows" setting for these :

ext+container:name=Personal&url=https%3A%2F%2Fwww.facebook.com%2F%3Fsk%3Dh_nor ext+container:name=Facebook&url=https%3A%2F%2Fwww.facebook.com%2F%3Fsk%3Dh_nor

This was working fine without any issues. My sites opened up when I started my web browser and everything.

Recently, firefox has started up but my container tabs do not load automatically, I am getting a confirmation (I will post a screen capture as a comment).

Is there a way to turn this off and just open the tabs without a confirmation?

I have been using Firefox for many years and I have never had problems, until now, out of nowhere Firefox closes and the little window opens that the report is being sent to Firefox, but I can no longer restart or open Firefox, until I reset the computer, This can happen one, two, three and even four times a day, making it very uncomfortable to reset the computer.

I have already tried many ways to solve the problem, from completely uninstalling Firefox and reinstalling it, I use very few extensions, I already disabled WebGL and also disabled hardware acceleration, nothing has worked, when Firefox closes, I cannot open Firefox Developer either and That browser was not even open at the time of the failure with Firefox.

System 3.4 GHz Intel Core i5 de cuatro núcleos NVIDIA GeForce GTX 775M 2 GB 8 GB 1600 MHz DDR3 macOS Ventura 13.6.3

Firefox: 121.0

This is what appears in the error message

AdapterDeviceID: 0x0412 AdapterVendorID: 0x8086 Add-ons: %7B806d871e-a45a-4d26-8686-65fb36a5b399%7D:3.1,newtaboverride%40agenedia.com:15.1.1,langpack-es-MX%40firefox.mozilla.org:121.0.20231211.174248,es-ve%40dictionaries.addons.mozilla.org:1.1.18.2webext,uBlock0%40raymondhill.net:1.54.0,formautofill%40mozilla.org:1.0.1,pictureinpicture%40mozilla.org:1.0.0,screenshots%40mozilla.org:39.0.1,webcompat%40mozilla.org:121.0.0,addons-search-detection%40mozilla.com:2.0.0,google%40search.mozilla.org:1.4,wikipedia%40search.mozilla.org:1.3,bing%40search.mozilla.org:1.6,ddg%40search.mozilla.org:1.4,amazondotcom%40search.mozilla.org:1.7,mercadolibre%40search.mozilla.org:1.1 AvailablePhysicalMemory: 2027139072 AvailableSwapMemory: 1071644672 BackgroundTaskMode: 0 BuildID: 20231211174248 ContentSandboxCapable: 1 ContentSandboxLevel: 3 CrashTime: 1703917709 DOMFissionEnabled: 1 DOMIPCEnabled: 1 EMCheckCompatibility: true GpuSandboxLevel: 0 HeadlessMode: 0 InstallTime: 1703870048 LastStartupWasCrash: 1 MacAvailableMemorySysctl: 71 MacMemoryPressure: Normal MacMemoryPressureCriticalTime: Unset MacMemoryPressureNormalTime: 1703917708 MacMemoryPressureSysctl: 1 MacMemoryPressureWarningTime: Unset Notes: FP(D00-L1100-W0010000-T010) WR? WR+ ProductID: {ec8030f7-c20a-464f-9b0e-13a3a9e97384} ProductName: Firefox PurgeablePhysicalMemory: 31977472 ReleaseChannel: release SafeMode: 0 SecondsSinceLastCrash: 17 StartupCacheValid: 0 StartupCrash: 0 StartupTime: 1703917708 SubmittedFrom: Client TelemetryEnvironment: {"build":{"applicationId":"{ec8030f7-c20a-464f-9b0e-13a3a9e97384}","applicationName":"Firefox","architecture":"x86-64","buildId":"20231211174248","version":"121.0","vendor":"Mozilla","displayVersion":"121.0","platformVersion":"121.0","xpcomAbi":"x86_64-gcc3","updaterAvailable":true},"partner":{"distributionId":null,"distributionVersion":null,"partnerId":null,"distributor":null,"distributorChannel":null,"partnerNames":[]},"system":{"memoryMB":8192,"virtualMaxMB":null,"cpu":{"extensions":["hasMMX","hasSSE","hasSSE2","hasSSE3","hasSSSE3","hasSSE4_1","hasSSE4_2","hasAVX","hasAVX2","hasAES"]},"os":{"name":"Darwin","version":"22.6.0","locale":"es-419"},"hdd":{"profile":{"model":null,"revision":null,"type":null},"binary":{"model":null,"revision":null,"type":null},"system":{"model":null,"revision":null,"type":null}},"gfx":{"D2DEnabled":null,"DWriteEnabled":null,"ContentBackend":"Skia","Headless":false,"EmbeddedInFirefoxReality":null,"TargetFrameRate":60,"adapters":[{"description":null,"vendorID":"0x8086","deviceID":"0x0412","subsysID":null,"RAM":0,"driver":null,"driverVendor":null,"driverVersion":null,"driverDate":null,"GPUActive":true},{"description":null,"vendorID":"0x10de","deviceID":"0x119d","subsysID":null,"RAM":0,"driver":null,"driverVendor":null,"driverVersion":null,"driverDate":null,"GPUActive":null}],"monitors":[{"screenWidth":2560,"screenHeight":1440,"scale":1}],"features":{"compositor":"none","hwCompositing":{"status":"disabled:FEATURE_FAILURE_COMP_PREF"},"gpuProcess":{"status":"unused"},"webrender":{"status":"unavailable-no-hw-compositing"},"wrCompositor":{"status":"available"},"openglCompositing":{"status":"unavailable:FEATURE_FAILURE_OPENGL_NEED_HWCOMP"},"omtp":{"status":"unused"}}},"appleModelId":"iMac14,2","hasWinPackageId":null},"settings":{"blocklistEnabled":true,"e10sEnabled":true,"e10sMultiProcesses":8,"fissionEnabled":true,"telemetryEnabled":false,"locale":"es-MX","intl":{},"update":{"channel":"release","enabled":true},"userPrefs":{"app.shield.optoutstudies.enabled":false,"browser.formfill.enable":false,"browser.search.region":"US","browser.search.widget.inNavBar":false,"browser.startup.homepage":"<user-set>","browser.urlbar.autoFill":true,"browser.urlbar.autoFill.adaptiveHistory.enabled":false,"browser.urlbar.dnsResolveSingleWordsAfterSearch":0,"browser.urlbar.quicksuggest.dataCollection.enabled":false,"browser.urlbar.suggest.quicksuggest.nonsponsored":false,"browser.urlbar.suggest.quicksuggest.sponsored":false,"extensions.formautofill.addresses.enabled":false,"extensions.formautofill.creditCards.enabled":false,"layers.acceleration.disabled":true,"media.gmp-gmpopenh264.lastInstallStart":1703870080,"media.gmp-gmpopenh264.lastDownload":1703870081,"media.gmp-gmpopenh264.lastUpdate":1703870081,"media.gmp-widevinecdm.lastInstallStart":1703870080,"media.gmp-widevinecdm.lastDownload":1703870082,"media.gmp-widevinecdm.lastUpdate":1703870082,"media.gmp-manager.lastCheck":1703871110,"media.gmp-manager.lastEmptyCheck":1703871110,"network.trr.strict_native_fallback":false,"privacy.donottrackheader.enabled":true,"signon.management.page.breach-alerts.enabled":false,"signon.autofillForms":false,"signon.generation.enabled":false,"signon.rememberSignons":false,"signon.firefoxRelay.feature":"disabled","widget.content.gtk-high-contrast.enabled":true},"sandbox":{"effectiveContentProcessLevel":3,"contentWin32kLockdownState":3},"addonCompatibilityCheckEnabled":true,"isDefaultBrowser":null},"profile":{}} Throttleable: 1 TotalPhysicalMemory: 8589934592 UptimeTS: 1.09276904 Vendor: Mozilla Version: 121.0 useragent_locale: es-MX

Este informe también contiene información sobre el estado de la aplicación cuando se cerró.

Hi, I just upgraded to W11 yesterday and having a weird issue with firefox. I have "combined task bar buttons and hide labels" set to NEVER yet firefox has a weird issue that no other open program has. I have firefox pinned to my taskbar (image 1.) When I click it (image 2) it's supposed to expand into a full size tab but it stays as just an icon.

But when I right click and open taskbar settings, firefox remembers that I have combine task bar set to off and correctly expands into a full tab (image 3.) I'm not sure if this is a firefox issue or a general windows issue. Thanks for any info anyone can provide.

Hi all,

I feel like this is a problem that must have been experienced and solved a thousand times... however I've tried all the suggested fixes I can find and the problem still persists.

When I load Firefox the pages take ages to load. It doesn't matter what the page is, it takes ages, except that about: pages load fine, no problem. When I say pages take ages to load, I mean that everything about the page takes ages, not only the next, not on the images and other content etc, everything. This only started happening today and I only created a new profile a month or so ago. I don't have many tabs open (maybe 20) of which 9 are pinned. I do have lots of extensions installed.

I've tried troubleshooting/safe mode, that makes no difference.

Private browsing and loading another profile are fine, they don't have this problem.

I've cleared all cache and data, cookies, etc, including startup cache.

I've deleted the content-prefs file, and removed places files.

I've tried disabling and enabling hardware acceleration.

I've tried disabling TRR.

Probably some other things too, but so far nothing has worked.

Suggestions please! :)

In the last few days whenever I download a PDF file instead of it being displayed in my default PDF read Firefox (version 121.0.1) takes over and displays the contents of the file. I do not want this, I prefer my PDF reader! How do I stop Firefox trying to take over this function? (other than converting to Chrome)

I've always liked the Firefox New Tab page, with Pocket, and until today, DarkReader plugin has always worked. But now it says that it can't because the page is protected.

I tried the solution to use bookmarklets, suggested in https://support.mozilla.org/en-US/questions/1350781, but it didn't have any effect (https://sanketmehta7.github.io/DarkMode-JS-BookMark/

If I can't find a solution, I'll just ditch Pocket, and use Google as my first page, or something. Or maybe ditch Firefox, which doesn't seem to think that dark mode is important. I don't like being blinded by the light.

Firefox periodically says I am "forbidden" to enter my Kaiser website (KP.org). I know what Mozilla recommends as a fix, which is to clear data and cookies. But this creates more problems because I have to re-enter passwords and other settings. This is a problem Mozilla's website reports has been occurring for YEARS! Why can't Mozilla/Firefox fix this? Please tell me there is a better way to fix this problem.

David Karp dkarpcal@gmail.com or cloverdavid@gmail.com

On a couple of websites, but in particular Rogers.com, the captcha just never ends. It asks to click on all the bicycles, I click on them one at a time until no more appear, hit verify, it brings up something else. It will do this dozens of times and just never ever end.

Switch over to Edge, does the same. Switched to chrome and it works fine. Has google done something to captcha to deny it working on other browsers?

I have checked to see firefox is up to date and it is. I have disabled all extensions/addons. I have run malware/virus scans. On the Rogers community forums there are all kinds of people having problems but there are no solutions on how to fix. Oddly (or not) the problems are similar...captcha won't work on Edge, Firefox but will work on Chrome.

Starting this morning I suddenly cant delete or mark emails as read in Outlook.live.com. Even if I open an email, and it appears as read after that, if I refresh or leave the page and come back, its marked as read again.

I tried dropping all add-ons (a kill switch to drop all add-ons and re-activate them is still a feature I feel Firefox needs, I have to click every single one of them every time) to no avail.

I was in the process of writing this question on the Microsoft forums (which is usually like whizzing in the wind) when I thought to try a different browser. I had zero issues and Outlook.live.com worked perfectly normal on Microsoft Edge.

This HAS to be a bug in a recent update in Firefox

basically just the title. In the last couple days youtube.com specifically has been borderline unusable for me on firefox. All other websites work fine for me on firesfox and youtube has no issues on other browsers.

Both devices are recognized in my account. After running Sync, the history from the desktop is on the mobile but the bookmarks are not. Desktop is running Firefox snap v. 121 on Ubuntu 22.04. Mobile is running Firefox app v. 121 on Android 10. I have a copy of the sync.log but it's really long. Can attach if needed.

I've been having this reoccurring firefox bug every couple of months where randomly all audio from the application stops working is no longer available in the volume mixer of windows 11 (see example screenshot with twitch tab in background playing)

In the past, I was able to fix this issue by simply restarting the audisrv service and everything would work normally but now nothing I do seems to work. I've tried:

- Resetting - Uninstall/reinstall - Disabled all extensions - New profile

I do not have this issue on firefox dev or firefox nightly. If anyone has any ideas on how I could resolve or better diagnose this issue it would be much appreciated! TIA

After the last update, my add-ons overflow menu no longer works from the puzzle icon. It won't expand completely and you can't scroll down, therefore, I can't add or remove add-ons to the bar. See Image.

I see where other people have posed this question but the procedure offered is not available to me.

I am using Firefox (Flatpak) version 121.0 on an Ubuntu 22.04 laptop.

On installing a new extension I should either see the extension's icon on my toolbar or else have a clear means of adding it. I have neither.

Clicking on the jigsaw icon in the toolbar, I get migrated to the about:addons page. On clicking the Extensions tab, I get the screen listing all installed extensions. Each extension has a ... icon beside it. But when I click on this, there is no "Pin To Toolbar" option.

What is wrong here ?

Firefox stopped working with my VPN on when I updated my OS to Sonoma, yesterday. I use PIA for my VPN.

I have done the following, so far, restarting my system several times between trying these things:

Checked that internet connection and modem are fine. All pages load in Safari, with VPN running, but I prefer Firefox.

Checked the Network settings for my Mac. Ensured that No Proxy was selected.

Cleared my Firefox cookies, cache and history.

Tried running in troubleshooting mode, turning off all extensions.

Tried turning off Advanced Tracking Protection, which I usually run on Custom.

Refreshed Firefox.

Finally, I turned off my VPN and, viola, all sites work. Turned it back on, and can’t navigate, again. For instance, I tried to open YouTube, and got a blank screen. Turned off VPN, and got to main YouTube page. Turned the VPN on and tried to log in…nope. Turned it off and logged in. Turned it back on and tried to open a video….nope. Turned it off and opened the video…etc., etc..

I very much wish to continue using both Firefox and my VPN. Can you suggest a course of action? Thank you for any advice you can give!!