Firefox Community Forum

WebGL2 works fine for several hours but then packs up for no apparent reason. Closing all instances of Firefox browser (not just one tab), and restarting fixes it until the next time. This shouldn’t be necessary, and is becoming annoying as it is too late to save anything. Happens accessing express.co.uk and FlightRadar24.

Amazon (either UK or US) has suddenly stopped loading properly on Firefox - there's no main top menu or header, instead there's a text list down the LHS (see screenshots). This first happened yesterday (14 Sept 2025) and it's still the same today. It works OK on MS Edge, so it looks like the've changed something which Firefox no longer recognises.

A week ago I got a BSOD that ruined settings of most of my extensions and most likely some of Firefox's settings too (at least it erased my custom findbar.matchdiacritics value, but probably not just that). After that I moved Firefox's folder and re-installed it. I also created a new profile. The 2 profiles are synced. Because of that, the new profile got (almost) all the extensions from the old one automatically. Then, I decided to do a clean install of those extensions (the reason why is a story for another ticket). So, while both profiles were opened, I removed one extension in the new profile, waited for a bit and checked the old one to see if it got removed from there too. At first it wasn't, so I thought they are not synced (anymore). Yeah, sure, but once I removed all extensions from the new one, the old one woke up and removed all extensions from there too. Great! Awesome! Loved it wholeheartedly! It really had to wait until I removed them all, didn't it? Anyway, I had a backup of my old profile, so I restored my extensions and their settings on both profiles eventually. So now I have clean installs of Firefox and extensions. Back to the issue. I can't load Steam pages (at least store.steampowered and steamcommunity) normally anymore. They load forever, and if the blue dot eventually stops moving (after an insane amount of time), it's either a plain white screen, or badly loaded page with most images missing.

• Edge loads them just fine
• Steam client loads them just fine.
• If I turn on VPN plugin (I use Browsec), then it works. It's like that in both old and new profile. That's why I mentioned that funny little story before.
• Tried Troubleshoot Mode, didn't help.
• Tried to selectively disable some extensions, same.
• Obviously tried to remove cookies, Ctrl + F5 and whatnot. Btw, if I clean everything and try to load it, then it's (most likely?) a white page, but if I turn the VPN on and load it first, and then turn it off and reload it, then it will look a bit better, but still will load forever with some media missing. (Which kinda make sense since something was already cached.)
• Tried to change proxy settings from “Use system proxy settings” to “No proxy” and “Auto-detect proxy settings for this network”, nah-ah.
• Tried to disable DNS in Firefox's settings, no siree.
• The console throws different warning and errors every time (that are probably even unrelated). Or none at all.
• Probably tried something I already forgot about.

Also, it seems the culprit is actually Akamai (it's where the Steam stores its media) or whatever is preventing reaching it. Because it often shows something like “Waiting for community.akamai.steamstatic.com...” in the status bar for a long time. It seems like the problem is within Firefox's settings, and it also looks like settings aren't synced across profiles (or at least some aren't, I definitely had to configure them on the new profile manually). Anyway, I am out of ideas and my butthurt thrust is about to deliver me to Uranus. Thanks for your attention!

It can take many closing clicks to get rid of this warning and comes back again after a short while. What should I do? Tried searching with Malwarebytes itself and found no problems. Web search the same.

Malwarebytes Website blocked due to malvertising If you don't want to block .................................. IP Address: 108.62.60.42 port: 443 type: Outbound file: c:\Program Files\Mozilla Firefox\firefox.exe

Has any body else found Firefox relay to be mostly useless? I put up with the annoyance for a few days and then had to get rid of it.

I did use it once to get past the id page for a purchase just to look at the freight cost. Too much, so the tab was closed straight away and the masked email did not leave my computer.

The problem is that signing up to new accounts or providing your email online is something that is done only very rarely compared to the number of times your email has to be used to login to an existing account but relay has to be in the way every time.

Just a hint to the developers, those accounts already have my email and they will never lose them. Also if I need to use my email to sign in, giving a mask email is not going to work very well.

Relay is a great idea if only it could determine the right time to get in the way.

Hi,

I bookmarked a page of a website today and when I attempted to bookmark another I was unable to do so. I checked the troubleshooting advise here and I tried to restore my bookmarks to an earlier date, but that attempt failed. After that, all my bookmarks disappeared and I'm unable to bookmark anything at this point.

I've attached a screenshot of what it says in the Places Database.

Thank you. Deborah

audio is not playing in firefox, nor does it appear in my third party sound mixer like it usually does. it does appear in windows' sound mixer, but does not play any audio. i have refreshed firefox and checked my drivers and my devices work fine. firefox is the only application on my computer that refuses to play audio.

I've installed various Markdown Viewer extensions, but I can't get any of them to function. When I open a .markdown (or .md) file with Firefox, the file is displayed as plain text. My markdown test file is very simple: some text, a couple of headers, a couple of lists. The file formats correctly on my android phone. Opening an HTML file with Firefox works fine. I'm baffled. Any help out there?

When I close the browser, recently it is leaving a lot of background processes running. As a foreground application, when I close the browser, I want it ***closed***. That is, no remaining processes/services. File|Exit should mean exactly that.

@Mozilla, please fix this, or add a very clear/obvious setting in Tools|Settings for "Close all browser processes/threads" on exit. I shouldn't need to get into about:config to start finding things to disable.

This has been interfering with backups because of files remaining open/locked even after the browser is closed.

For the second time in realitivly short period, bookmarks disappeared. Using the methods outlined, no luck. Click on the triple bar on right side, bookmarks, bookmark manger, import & backup, restore, that's where the trail ends

Cookies and Site Data - How do I clear all except the few I want to keep, without having to go through the list and select manually each time. i.e. "Delete all except", every time I close Firefox?

my old computer had the Last Pass icon (on the Firefox browser) on the tool bar all the time. I needed to sign in regularly but I can't figure out how to get it on my new computer, on the toolbar again.

I find the 4 boxes on the Contrast Control/Manage Colors settings confusing. I've tried just about everything for an issue I've had for months. When I use the automatic settings there is a dark background. Visited links pops up white (readable) and immediately changes to purple so that I can barely see it. This happens on multiple web sites. Amazon and Ebay are examples.