Firefox Support Forum

Videos (with the exception of those on YouTube) have no sound, and in some cases such as Amazon or Plex, fail to play at all. Amazon directs me to plugins, and to select 'Always Activate' on Widevine Content Decryption, and to update plugins. This was already the case and had no effect. Plex, in some cases, simply gives the error: 's4032 (Manifest)', though this could be a different issue. Other videos on Plex have the same problem of no sound. This problem doesn't occur on other browsers like Chrome or Edge.

Hello, sometimes firefox seems like it is working fine, other times certain sites like youtube, duckduckgo and spotify will not load, while others will.

I've gone through and done everything the help articles suggest, nothing happens - then a few days later everything's fine. It's gone on like this for a few months. Any help would be greatly appreciated.

thanks -alex

Windows 10 Pro v 22H2 Firefox 121.0.1 (64-bit)

I have tried preventing Firefox from autostarting with Windows start up by examining these potential program starting locations:

Firefox-Settings-General: "Open Firefox automatically when your computer starts up": Option not available about:config - toolkit.winRegisterApplicationRestart - set to "false" No listing for Mozilla or Firefox in Windows 10 "Startup Apps" settings page No listing for Mozilla or Firefox in Windows 10 msconfig.exe/System Configuration-Startup No listing for Firefox in Windows 10 Task Scheduler No Firefox program in Windows 10 - %appdata%\Microsoft\Windows\Start Menu\Programs\Startup folder All Firefox extensions (2) are disabled

Where else should I be looking? Thank you

hello... im 28 years old and safesearch is on, on my firefox and i actually cant change setting.... it wont give me access to the setting menu. need help with fixing it. account is: farzadmb74@gmail.com

I'm still running Firefox under Windows 7. I've now connected a new monitor with a resolution of 2660 x 1080 using an HDMI cable (previously DVI), and since then I've had major problems setting up websites. the websites are only partially built and I have to reload several times. Can you help me?

Hello, in my "Themes" section in the add-ons manager, I can view all the themes I have downloaded, and there are default ones I did not choose to install/download, and I would really like to disable these recommendations; for these, it only gives me the option "manage" whereas the ones I downloaded I also have the option choose to remove or report. They are not relevant to me, and they take up space and are a distraction from those I am interested in. Is there a way to disable these "Recommended Themes" section???

I am a startup founder. I'm making a webgl rendering engine. I'm doing a stress test with 4 large paragraphs amounting to tens of millions of triangles on a macbook air. Firefox is on the latest version.

When I run the app in chrome/safari/opera, the performance is normal. ~45fps. But in Firefox, it's very slow. My FPS counter (in a requestAnimationFrame loop) says ~45fps on all browsers. But in Firefox, even though the counter says that, the real frame rate is ~3-5fps.

When I try to profile, the problem magically goes away and we're back to ~45fps. I played around with profiler settings, and the key determinant is whether or not I'm taking screenshots. No screenshots = slow. Screenshots = fast.

In the flame graph, in slow mode (no screenshots), it seems like I get stuck in the canvasRenderer and the Renderer mostly waits for it. But in fast mode (with screenshots), the canvasRenderer keeps up and the Renderer spents most it's time in: iokit_user_client_trap

I'm not sure what to do. This is only a problem on Firefox. There's some sort of gpu/threads/something that switches when I profile with screenshots that makes it way faster. This performance hit basically ruins my app for Firefox only. Any idea what I should do?

There used to be a box to write tags as you can see here: https://support.mozilla.org/en-US/kb/categorizing-bookmarks-make-them-easy-to-find?redirectslug=Bookmark+Tags&redirectlocale=en-US

What happened to it? When it was deleted? Why? Is there a way to restore it?

On a couple of sites (e.g. Petapixel) when I click "Load Comments", nothing happens. I suspect this may be because Firefox security is preventing comments from loading because of site tracking or other security issues. Is this the cause?

Hello, Firefox keeps signing me out of Google websites like google.com and youtube.com when I close out the browser. I recently switched from Google Chrome and was wondering if this was a Google issue or if it was Firefox. It only keeps me signed out of Google accounts, and keeps me signed in for every other website. I have the "Delete cookies and site data when Firefox is closed" box unchecked and it still keeps me logged out, and I have "cookied" unboxed in my Clear History settings as well. I'd like to have this issue fixed as soon as possible for school-related reasons.

I'm still using windows professional 7, it works for the most part. Unfortunately often the browser won't load or it will load and runs very slowly, then it shows a box saying close previous firefox. When it is running slowly I often have to hit the browser many times until the box shows up saying close previous firefox. Is this something to do with windows 7 or another completely different issue.

How do I add a link to the start page that shows when you open a new tab? I've read support docs and I don't have a "pin icon" on my toolbar... I'm on MacOS (M1) and latest (Feb '24) FireFox...... how can it be so non-intuitive? I can't find an option anywhere...

i troubleshooted everything , I did a refresh , things got worse Amazon just isnt loading Other quirks after the refresh like opening a window instead of a tab ( yes my settings show tab) It causes other websites to run slow i turned off my ghostery , ran in trouble shoot mode, amazon works fine in chrome ( which i downloaded just to check , please don't make me go to chrome )

I've been with firefox since netscape 1