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Not sure which is the cause. On multiple laptops and desktops after last Windows 11 update and then an immediate Firefox update, the software protection service of Windows 11 goes into high cpu mode consuming 40-50% of cpu when Firefox is opened. Running Firefox version 122.0 (64-bit) version. Tried in safe mode and still having issue. Just an FYI for developers to look into for next Firefox update.

Opening a new empty tab is very slowly with the spinning wheel (about 10 to 20 seconds). With no other tab opened. Closing a tab also takes about more than 10 seconds (empy tab, no other tab).

Can not open web sites : almost every times nothings happens. But sometimes it works. Firefox process has tenths of child processes which are <defunct>

What I have tried : - Remove all configurations files (see list below) - Install a fresh Firefox - Restarts the computer (MacBook Pro Intel) - Launch Firefox

That means that I have an empty profile, no external module, no account synchronisation, no history, no bookmarks, zilch, nada ...

Repeated the previous procedures several times the last few months. With : - Mac OS X Ventura 13.5.1, Firefox 117.0 and Firefox 119.0 - Max OS X Sonoma 14.1, Firefox 119.0.1 - Mac OS X Sonoma 14.1.1, Firefox 120.0 - Mac OS X Sonoma 14.2.1, Firefox 122.0

Firefox has a normal behaviour for a few days after each system upgrade. Then the problems comes back.

Other browsers (Chrome, Safari) works fine and smoothly.

But ! TorBrowser, which is built on Firefox, encounter the same problems.

Configurations files that I delete : - ~/Library/Preferences/org.mozilla.crashreporter.plist - ~/Library/Preferences/org.mozilla.firefox.plist - ~/Library/Caches/org.mozilla.firefox - ~/Library/Caches/org.mozilla.crashreporter - ~/Library/Caches/Firefox - ~/Library/Caches/Mozilla/updates/Applications/Firefox - ~/Library/Saved\ Application\ State/org.mozilla.firefox.savedState - ~/Library/Saved\ Application\ State/org.mozilla.updater.savedState - ~/Library/WebKit/org.mozilla.firefox - ~/Library/Application\ Support/Firefox - ~/Library/Application\ Support/Mozilla /Library/Application\ Support/Mozilla

Can not find anything to try.

Any idea ?

I have an IO group account, and mail delivery from messages sent to/from them is erratic. Sometimes they arrive within seconds; other times it takes over a day. I know the messages are sent, because I can see them on the IO group, but not in my inbox. I don't seem to have issues with any other emails, only IO groups

Firefox for Android has issues playing back YouTube video through my car stereo and some other types of speakers. Specifically, it works fine with my headphones but not through my car.

Chrome, YouTube app, and other browsers don't have this issue and my car is fine otherwise. I've had this issue on 3 different phones from 2 different manufacturers on multiple versions of Firefox for years and the issue comes and goes with updates but it has been an issue for the past few months now, so I know it's Firefox and not Android or my phones.

Hi there, I am having a problem with the latest version of Mozilla Thunderbird. When I try to print a message from the Sent folder, everything looks fine in the preview, but when I print it to my printer or even to PDF, then I have headers and the first 2 words from the mail, the next is the blank page (should be my message) and on the next page is the message I'm replying to.

Very often (probably 3/4 of the time) when attempting to move a message to a folder, nothing happens. I have to select another message then quickly go back to the message and quickly select Message Move and then scroll to the desired folder and hope it moves. Sometimes if I don't do the above steps within a few seconds, the action does not occur and I have to redo the above steps.

This happens more often with a message that has been selected for more than a few seconds.

I have kept Thunderbird updated thinking/hoping I wasn't the only one encountering this problem but it has persisted since a significant update in the 2 months or so.

Thank you.

Firefox mobile sometimes zooms in without able to zoom out on all sites. Seems to only happen whenever the samsung app store updates it. for context, i downloaded firefox through google play store but the samsung store for some reason updates the app every now and then. It happened twice so far, and reinstalling it on the play store seems to fix it

Every once in a while message attachments wont open. A temporaty fix is to fix the incoming folder but that takes a long time every time i have to do that.

This time i decided to check the error log and found this error:

NS_BASE_STREAM_CLOSED: Component returned failure code: 0x80470002 (NS_BASE_STREAM_CLOSED) [nsIInputStream.available] NetUtil.sys.mjs:445

   readInputStream resource://gre/modules/NetUtil.sys.mjs:445
   buffer resource:///modules/AttachmentInfo.sys.mjs:215
   onStopRequest resource://gre/modules/NetUtil.sys.mjs:124

here is the latest of many crashes documented. I have no idea how to fix this. The problem-solving measues on the Fierfox website were all without success bp-5ab98827-7fab-4757-8baa-db3360240204

Hello everyone,

i just wanted to post this here so others may find it via google. I had a problem with videos randomly playing with black borders. That was really annoying because sometimes it cut out portions of the video. But after months of trying and searching nothing came out, except the "fullscreen black border 'api-config' fix" wich didn't help me. And now finally I figured it out! It was my damn AMD driver...! It was set to "Home Video" in "Audio and Video", wich enabled "AMD video stabilization".

So in quick summary: When you have black borders while watching video in Firefox; make sure in your AMD-driver, in "Audio and Video", "AMD video stabilization" is turned off!.

Hope this helps someone, bye :-).

Came here after a response on my google play review.

The problem is exactly as the title describes. Playing videos on various websites, such as Youtube, Vimeo, Twitter and Reddit for example, on firefox mobile (including firefox focus) results in the videos playing back with low fps instead of their native fps.

Refreshing the page the video is on sometimes fixes the issue, than once you pause the video and resume it the problem with the low fps shows up again.

Reinstalling doesn't fix it and downgrading to an older version made the problem occur less, but videos would still sometimes play back with low fps.

If screen recordings help figure out the problem please tell me.

I'm currently looking for a job, and I keep my windows separated by category, so I have one that is job search related, and the other that is more general. In my job search window, I have many tabs open for different job postings that I want to hang on to /keep track of. When I want to jump to one of these tabs, I open a new tab and type in whatever its title would be, and then when it pops up in my history I click the "Switch to tab" shortcut to get to it. I find it saves time as opposed to sifting through 50 tabs. In this case, I was trying to find a tab that was opened to a sales job posting, and I clicked switch to tab. However, it took me to a what I think is an entirely separate window, one that I didn't even have open previously, and my jobs window disappeared. I tried to reopen it in History, but it didn't show up. Does anyone know what might have happened here, and how I can recover that window?

This is the third time in 3-4 weeks that this has happened. When I detached an attachment, the entire email disappeared. It is gone and a search for it comes up empty - even the trash and junk folders. It is just gone. Message body is set to Original HTML. There were no other attachments in the "attachment" drop down. Version 115.7.0 (64-bit). Again, this has now happened three times and there is no way to retrieve the emails.