Firefox Support Forum

The puzzle piece icon is not on the toolbar. Neither is it shown in the customize toolbar dialog. I have reset the toolbar to default, rebooted Windows 11 and removed & reinstalled Firefox 120.0.1 (64 bit). Those did not work. How can I restore the puzzle piece icon to the toolbar?

Firefox on my mac has recently started displaying strange text in any windows where the browser itself chooses the font. I verified that the font settings are default, and the issue persists. Screenshots attached, any ideas?

Only my mac has this issue, my iPhone, as well as two Windows PCs all on the same account do not present with this.

Greetings everyone,

I have 8gb of RAM installed on my laptop running Windows 10 Pro.

However, I'm always running out of RAM because Firefox is using almost all of it.

I'm unable to open any other App while I have Firefox running because there just isn't any RAM available. :( :( :( :( :(

I'm constantly trying to close tabs and windows, but I just wanted to know if there was another solution?

I've used other web browsers that have a "sleep tab" feature where the tab will use very little RAM if the user hasn't accessed it for about 15 seconds to 1minute.

What else can I do?

Thank you for any help!

I had 2 windows open, closed one, lost all of my tabs. Restore didn't work. I tried to restore by renaming session-store-backups folder files. doesn't work. There is a file called upgrade.jsonlz4 from November, maybe that could be used to restore tabs somehow?

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.

Firefox has been crashing multiple times per day for several weeks now. It used to be fine, hardly ever crashing. I can't think of anything I'm doing differently since before the crashes started. I can only assume that it started after a specific Firefox update. I do have a lot of windows/tabs open at once, but that was never an issue in the past. Occasionally individual pages will crash, usually several at once. The entire software crashes all at once regularly as well. Sometimes the crash seems to cause other issues, such as my computer hanging up for a bit, or my monitors going blank and the graphics system seeming to reset, before Firefox actually crashes. I don't always get a crash report dialogue when the whole thing crashes.

Most recent crash report ID: bp-bd37576c-c5ef-419f-a031-fe1910231123

I keep my Windows and Firefox up to date. I tried turning off hardware acceleration, but I think that might have made it worse so I turned it back on. I cleared the caches (which took well over five minutes), and ran speedyfox a few times. I exit Firefox through File > Exit whenever I need to restart or run other heavy software.

Twitter not working properly on Firefox (Volume on videos can't be changed, hovering over buttons doesn't do anything and font looks a bit off, could be just Firefox font or something) works on chrome and other browsers.

Video link that shows this of: https://youtu.be/3Lk83z-ozVI?si=uWYjGhFk294Hn9Dj

I am using Firefox 120.0.1, and I have difficulty to take screenshot.

I tried to press shortcut key and button in toolbar as shown in the attached image, but they didn't work.

Is there any good way to fix this problem without reinstall firefox app?

As I said in the Subject I just bought Total AV this month, now its disabled on Firefox. Is this a permanent action? or is this a temporary action? How can/will I get my Antivirus back in action on Firefox?

I'm getting Access denied Reference #18.6b01cb8.1700662622.22a58314 only on tesco.com since last nights firefox update.

All other sites are funtional (at least no others found yet). I have cleared cache and cookies but still getting the issue.

The site is up and accessible by ms edge.

I have run in troubleshooting mode and taken off any extensions, still no change.

Running windows 10 (latest updates)

Malwarebytes is reporting no issues.

Greetings!

This is so strange.

My Screenshot Icon in FF 120 is gone. Tried adding it back, but it's not there under More Tools -> Customize Toolbar. Overllayed Firefox with a new install - no change. Disabled/enabled extensions and themes. No go.

Am I the only one? Any ideas?

Thanks. :)

Firefox use to keep me logged into Asana. But after deleting my browser cache a while back, it no longer does. Even though it still keeps me logged in to other sites I go to.

I have already tried to get help with this on Asana's help forum and a computer help group on FB. As well as from researching on google. I have tried everything they told me to do and it still isn't keeping me logged into Asana. I am completely baffled as to what it stopped keeping logged in. But I know it had to do with deleting my cache because it did it right after that when I tried to log back into Asana. It never kept me logged in again.

When I deleted my browser cache I made sure to not check the one that said it would log me out of website if I check it. I didn't delete that, I just deleted the other stuff that was in the gb range. So I don't know why every time I delete my cache it still logs me out of all website anyway even though I uncheck that.

Yesterday I reset firefox back to its default settings, but that didn't help either.

Any ideas what else I could try before I uninstall firefox and reinstall it. I have backed up my bookmarks, but the last time I had to import my bookmarks when I got a new computer it did not import them correctly and it made a mess out of my bookmarks and didn't even save my browser toolbar stuff. So reinstalling Firefox is my last option.

Is there a Firefox setting that automatically clears cookies? When I turned my computer on, it had been cleared of cookies since the last time I had it on a few hours ago, but I didn't do it. No one else here to use the computer but me. I don't want cookies cleared automatically. How do I change it back to manual? I use Firefox Browser 120.0

thank you

I have been receiving the following error code 'PR_END_OF_FILE_ERROR' on several website on my Firefox browser. Sometime, not all the time, I get the same error message while trying to use YouTube, while other times the site loads but says that I am offline and no internet connection. I have done all of the fixes that they say to use online and nothing seems to work. YouTube will occasionally work but none of the thumbnails will show up. Then there are other site that work fine.

Hi!

I'm on a newer laptop with an AMD CPU (with its own integrated GPU) and an Nvidia GPU.

When changing Firefox to "High performance" mode in the Windows 11 settings (System > Display > Graphics), it is said to use the dedicated Nvidia GPU. However, to my surprise, this is noticeably more stuttery and laggy than having it use only the integrated AMD GPU ("Power saving" mode).

Additionally, Firefox's hardware acceleration (General > Performance) is set to "use recommended", and my Windows 11 Power mode (System > Power & Battery) is set to Balanced.

I was wondering what the best way to configure all these settings is, such that it takes advantage of my hardware as much as possible? I wish to understand more than simply switching options until Firefox looks the smoothest to my eye --- what do these settings actually do, and how should they be configured idealistically?

I also sometimes run Linux, where things are a bit more complicated (e.g. Nouveau vs proprietary drivers, PRIME, etc) so I understand if the answer is less certain in that environment, but any info for it would be great as well.

Thanks!

Hey,

I've been having an odd issue with Firefox where tabs where I attempt to access youtube.com will immediately crash. This issue first arose when I attempted to log in to Youtube, and had never occurred before. When I did that login, the tab crashed, and I have been unable to access the website since (100% crash rate).

Basic details: The website does not visually load at all. However, the URL bar icons for the website do briefly appear prior to tab crash. (Autoplay button, etc). The crash is never reported in about:crashes.

I've tried the following tests, unsuccessfully: - Logging out of all Google accounts separately - Disabling all extensions - Transferring all of my data to a new computer - Reinstalling Firefox - Rebooting Firefox in troubleshooting mode

This problem does not occur on my Windows machine but occurred on my previous intel-based Mac and now on my current Apple Silicon Mac.

The only success I have had is in creating an entirely new Firefox profile. However, I would prefer to fix the issue, as I assume that porting all my settings to the new profile would... also probably bring the bug along.

Thanks for reading & any advice is appreciated.

So I just picked up a new laptop (ASUS Vivobook 16x), and everything is fresh on it. Additionally, this only affects some video content in Firefox, with Edge browser unaffected. In brief, what is happening is that within a couple hours of having the browser open, certain video content stops working, specifically Twitter/X videos just spin, YouTube previews stop working, and videos continually load. Netflix videos continue to work, but hover previews stop functioning. I even check the 'Stats for Nerds' on YT and it shows 0 KB network activity in Firefox.

I've tried every basic action I can think of:

• Turning off extensions (only use Ublock and Bitwarden)
• Browser Refresh (x3)
• Reverting from 120.1 to 120.0, and now 199.0.1
• Clearing the browser cache
• Reinstalling NVidia and Intel Drivers
• Running in Safe Mode

Only by doing a refresh or completely closing/opening the app gets videos to function again. This doesn't affect the old laptop or my desktop, which makes me think it's a rogue driver--but then why would Edge function without error over the same period of time?

Are there any settings to play with in the browser that can help diagnose?

Dear FF/Mozilla:

I've experienced a number of issues where I'm unable to do banking transactions using the FF browser. In one case, Wells Fargo bill pay does not work (but works fine with MS Edge); in another case, an international money link payment to a vendor in the UK would not go through using Firefox (but did first time with MS Edge). In yet another case, Firefox won't load webpage photos for items for sale on the site www.telescope.com - the page loads with descriptions but photos would not load (I just tried it and, nada). This remains the case even after my VPN is disconnected.

I've used FF for several years now without too much trouble but with this ongoing non-functionality of FF, I'm tempted to migrate to MS Edge or a browser that is supported more widely.

Any help or advice? Thanks, Blaine