Firefox Support Forum

I have a home-built media center (OS: Linux Mint 20.3) utilizing Firefox as the primary browser. This system has run almost flawlessly for many years. Updated to 20.3 in early 2022. Rather suddenly (yesterday) Firefox began repeatedly crashing, displaying 'Mozilla Crash Reports' (example attached). Firefox appears to initiate as expected. However, on display (e.g., Youtube, Facebook, web page, etc.) request, Firefox immediately throws a 'Mozilla Crash Report'. I do not recall any changes to the system that might have generated this condition, and have spend most of today unsuccessfully troubleshooting.

MB: Gigabyte F2A85XM-D3H CPU: AMD A-10 5800K APU with Radeon HD Graphics OS: Kernel: 5.4.0.170 generic x86_64bits; on 128MB SSD Firefox for Linux Mint mint-001 - 1.0 (122.0 (64 bit)) RAM: 7 GB

I have attempted to follow some of the moz://a Support pages (i.e., "Troubleshoot extensions, themes and hardware acceleration issues to solve common Firefox problems"). I have noted that while in 'Troubleshooting mode', Firefox appears to behave as expected, seeming to implicate extensions, themes and/or hardware acceleration. However, under normal Firefox operation enabling/disabling these does not seem to resolve the issue.

    * Hardware acceleration (on or off) still results in display of 'Mozilla Crash Report',
    * Default theme is selected, and
    * I don't appear to have any unaccounted extensions or other addons enabled.

Any thoughts and/or additional guidance would be greatly appreciated.

When I launch FF after rebooting an annoying ad pops up on the new page tab, the contents are:

'Get the inside scoop

See the add-ons our staff use to make browsing faster, safer, or just plain fun!'

It pops up just under the puzzle piece icon next to the address bar.

Is there a way to block it?

for years I use cbs6wrgb in albany for news, as of recently when I go to this site it loads the page and then goes blank. No error message I can access this site on other browsers

I set up a website for my wife a while ago. Most recently we noticed that some (not all) of our pages are not shown correctly when we use Firefox as browser. Specifically, when you open a webpage and scroll down as far as you can, there is a certain white area at the very bottom visible, below the footer. Now, if you wait a small amount of time, then scroll a little up and down again, the white border is not longer there and the page appears as it should.

Example pages for this behavior are: https://praxis-weinhold-schattentherapie.eu/entspannung/ https://praxis-weinhold-schattentherapie.eu/praxis/ https://praxis-weinhold-schattentherapie.eu/ueber-mich/

It is not happening e.g. with: https://praxis-weinhold-schattentherapie.eu/unterkuenfte-und-impressionen/ https://praxis-weinhold-schattentherapie.eu/angebote-und-kontakt/ Example screenshots are attached.

This strange behavior cannot be recognized with other browsers, we tried Chrome as well as Edge. Many thanks in advance for any ideas on how to adress this! Best regards Carsten

Is it still possible to configure userChrome.css to have the URL field in the Firefox 'Add bookmark' window? Also, is userChrome.css configuration going to be used no more in future releases? If yes, then how will we be able to customize, for example, fonts in Library, side bar and context menu?

Is it possible to combine history/bookmark files? Firefox has truncated my "History" to 15 days and the only option I see to get elder entries is to combine a backupped history file with the current one. An easy-to-use tool for this task would be welcome. I did not change my config options after the update to 121.0.1 (64-Bit) (Windows 10pro) but I think I had the total history (from years) before the update. My current Options related to this topic are: browser.history_expire_days false places.history.expiration.max_pages false places.history.expiration.transient_current_max_pages 501234 privacy.clearOnShutdown.history false privacy.history.custom true history (*) Boolean Number String

I already sreened Help files of this Forum concerning lost history data but they all do not give sufficient answers or I do not understand them (as a German user). Thanks. Martin

Recently after signing in to Pocket, all my tags disappeared. They can still be seen at each individual entry, but not on the list of tags. Any new tags I added also don't appear in the list of tags, which is completely empty. Searching for tags also gives no results. I tried to log out and log in again, but it had no effect.

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.

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)

1. 1 I set the Manage Data tab to 'Allow' for sites I want cookies saved for. This sets the http and https addresses for the sites I enter.
2. 2 I set the same sites in the 'Manage Exceptions' tab so that these sites do not have their cookies deleted.
3. 3 Save Settings
4. 4 Close and re-open Firefox. All cookies are deleted.

I suspect this is a bug?

Cheers.

I can no longer access my online banking at td.com - the server returns the following message: "Bad Request - Your browser sent a request that this server could not understand. Size of a request header field exceeds server limit.

The online banking works normally with Safari. Please help me fix this quickly.

Thank you.

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 ?

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.

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 installed (as always) the new Windows 10, downloaded from the office. firefox website. I log in to my login, synchronization takes place (firefox says so) but MY data is NOT!!! no synchronization, no loading of passwords, addresses, extensions!!!

I've looked at various suggestions to fix the above-reference problem and have checked that "open previous tabs and windows" is checked and that "clear history when Firefox closes" is *not* checked. But nothing is working. This started happening only a week or so ago.

Thank you for ideas.

A strange new requester appeared in Firefox today. I do not think that I clicked on anything without noticing. I was just watching a Youtube video and the requester appeared when I was moving the cursor down across the screen. The requester items would not respond, and the requester could not be closed. I had to quit Firefox and restart to get rid of it. See attached screen capture.