Firefox Support Forum

I am having an issue where youtube videos played at higher quality stutter when put to fullscreen. Up till about 720p60 works fine, at 1080p60 and above the framerate becomes unstable.

Things I have tried: - I have tried going into media.media-capabilities.enabled and changing it from false to true - I have set network.buffer.cache.size to 262144 - I have disabled all my plugins - I have tried changing my user agent to windows/chrome

My current setup: Firefox 122.0, Macbook pro Sonoma 14.1, Apple M1 Pro chip

Curiously, if I make a new firefox profile and play a video there, there is no stutter. Does anyone have ideas on how I can fix my current profile?

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.

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.

Up until this last update, in Gmail inbox, each message could be moused over top and action icons would show up. This no longer happens and I don't know why. It was very convenient not to have to open the message to take action on it and then return to the inbox. Now if I click the checkbox on the left side of the message those icons appear, but I never had to do this before??? I have not made any changes to the settings on my 1 year old Macbook Pro or Firefox configuration...

I frequently open new tabs by right-clicking the current tab and choosing "New Tab" from the context menu. Naturally, I want to start typing a URL or search term.

But the focus/cursor/caret is nowhere and typing does nothing. I have to click on the address bar, and then I can type.

I'm not using New Tab Override and I have Firefox's new tab set to a blank page.

I tried disabling all my add-ons, but I still had the problem.

I tried setting new tab to the Firefox home page and for a short while I got a cursor in the address bar. But the problem returned after a few hours

Any clues on what might be wrong? Firefox version 120.0.1 (64-bit) on MacOS Ventura 13.5.1. Thanks!

(A similar problem is described here: https://support.mozilla.org/en-US/questions/1420220 -- but in my case this is not a container tab.)

I have noticed that my browser saves certain data that was filled into forms on websites such as contact info, or 2FA codes. Of course, the all options for Logins and Passwords as well as Forms and Autofill are turned off. So I wonder, what causes this behavior? I would maybe think these are some cookies, but after clearing them and deleting all site data this still happens. For 2FA codes this is harmless. but I'm concerned Firefox may do this for passwords too. Anyway, why would I need to save info of TOTP?

Note: Example is for SimpleLogin.

I am seeking help in arranging for FireFox to prefill login forms on websites. For most sites it already works. There is on site where I have been unable to get the login credentials to fill the login form. The following images provide background information to show what I am doing and the result I am getting thus far. https://assets-prod.sumo.prod.webservices.mozgcp.net/media/uploads/images/2024-01-07-21-03-35-c4ca42.png

https://assets-prod.sumo.prod.webservices.mozgcp.net/media/uploads/images/2024-01-07-21-04-16-c81e72.png

https://assets-prod.sumo.prod.webservices.mozgcp.net/media/uploads/images/2024-01-07-21-04-24-eccbc8.png

https://assets-prod.sumo.prod.webservices.mozgcp.net/media/uploads/images/2024-01-07-21-04-33-a87ff6.png

https://assets-prod.sumo.prod.webservices.mozgcp.net/media/uploads/images/2024-01-07-21-04-42-e4da3b.png

I have my Firefox Firefox Privacy & Security History settings set to 'Always Use Private Browsing Mode.' Yet every time I open Firefox and visit the History tab, 'Recently Closed Tabs' shows a history of the websites I've visited. How do I disable this feature?

Hi. The annual NORAD Santa Tracker website does not function properly under Firefox. While there are no issues with the 3D rendering itself, the 3D map is squished vertically toward the left side of the page. It appears to be defaulting to a mobile browser view. The only extension I have installed is uBlock Origin, and I turned it off for the NORAD Santa website, and the display issue persists.

Opening the site under Safari shows the Santa tracker taking up the entire browser window as it should do.

I'm currently on Mac OS Sonoma using the latest version of Firefox 121.0

I went to a normal retail website, and got this page that appeared to be from Firefox, telling me to download an add-on for security. I declined. but now when I try to go to that website, I get re-directed to some strange websites. How do I fix this?

Open this url https://openfde.com/intro.mp4 and firefox shows "video can't be player because this file is corrupt".

Web Console logs: ``` Media resource https://openfde.com/intro.mp4 could not be decoded. intro.mp4

Media resource https://openfde.com/intro.mp4 could not be decoded, error: Error Code: NS_ERROR_DOM_MEDIA_DECODE_ERR (0x806e0004) Details: void mozilla::AppleVTDecoder::OnDecodeError(OSStatus): OnDecodeError:ffffcd9a intro.mp4 ```

`ffmpeg -i` with this video file: ``` Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/path/to/intro.mp4':

 Metadata:
   major_brand     : isom
   minor_version   : 512
   compatible_brands: isomiso2avc1mp41
   encoder         : Lavf58.76.100
 Duration: 00:01:51.77, start: 0.000000, bitrate: 3243 kb/s
 Stream #0:0[0x1](eng): Video: h264 (High) (avc1 / 0x31637661), yuv420p(progressive), 4096x2304 [SAR 1:1 DAR 16:9], 3109 kb/s, 25 fps, 25 tbr, 12800 tbn (default)
   Metadata:
     handler_name    : ?Mainconcept Video Media Handler
     vendor_id       : [0][0][0][0]
 Stream #0:1[0x2](eng): Audio: mp3 (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 128 kb/s (default)
   Metadata:
     handler_name    : #Mainconcept MP4 Sound Media Handler
     vendor_id       : [0][0][0][0]

```

Chrome is fine.

Trying to access my email account at Comcast, but recently (last few months) when signing in I get a blank page with the following message:

Firefox prevented this page from automatically redirecting to another page.

Followed by a link that says" Allow"

How can I correct this without having to "allow" each time?

thank you.

Doug

Hello, currently using 120.0.1 (64-bit) for macos and would like to know how to change behavior: When i'm trying to modify url in tab i'm currently working on and press enter/return it opens modified url in new tab for some reason. But when i hold option it opens it in current tab, is there any way to make it as default behavior? Thank you very much👍

I synchronized my Mac and iphone Firefox password accounts so I can share passwords between devices. I just realized I've lost all the passwords on my Mac. The only passwords I see are the ones stored on my iphone

Is there a solution to retrieving the passwords on my Mac?

Thanks

Hello

```

~ /Applications/Firefox.app/Contents/MacOS/firefox-bin

[1] 5919 killed /Applications/Firefox.app/Contents/MacOS/firefox-bin ```

Can't event imagine how to debug this - FF has stopped working totally from the command line, despite options etc It is still working when run from the dock however. But I need to start it from the terminal for the second profile

Hello, i've updated the Firefox browser to version 120 and since then polish texts in browser are broken. How can i fix it or restore to previous working browser version?

Hi, I am seeing issues with autoscrolling in 119.0. In Rundeck for example you can "follow" the output of playbooks that are running so you can dynamically see the log as it is written. The autoscrolling in this field has stopped working. When manually scrolling in the field, more messages appear but the autoscrolling is no longer functional. I have also seen it on other places, though I don't have remember good examples to add, so I don't believe it is Rundeck causing the issue--we also haven't updated rundeck recently in our environment, so it shouldn't have changed since before 119.0 was released. Let me know if there is more information I can provide to diagnose the issue.

Hi--

I recently upgraded from Mojave to Sonoma 14.2, and Firefox 120.0.1.

In Mojave, fn-F12 used to invoke a "Dashboard" with applets like Dictionary and Thesaurus.

With Sonoma, fn-F12 causes the bottom part of Firefox's frontmost window to become a web developer tool, same as ⌥⌘I, instead.

Can I get my Dictionary and Thesaurus back?

--Gil