Fóram Tacaíochta Firefox

For the longest time (can't pinpoint when it started) I've been having issues with Firefox on desktop (Macbook) playing videos and occasionally audio. Video playback will be functioning fine, then there seems to be a "trigger"...For ex. I have noticed this is often me trying to play a Twitter video, which won't play normally, and suddenly NO video playback of any kind (and sometimes audio) will work...Youtube, Netflix, you name it.

The only thing that "fixes" the issue (until it pops up again the next time) is quitting Firefox and starting it back up again, usually clearing my cache first for good measure. I have tried disabling all extensions and it has no effect. I have tried playing the video in a private window/incognito—no effect. If I open up Chrome and try to play the same videos I have absolutely no issues.

My Firefox says it is currently up to date, though I am running an older version iOS (Mojave). I have googled and seen many other people having this issue but haven't seen anyone chime in with a fix that actually works. Any ideas?

Om Macos 12.7.3 Monterey using FF 115.7.0esr (64-bit). Been using FF since God knows when. All well. But a couple of months ago windows or tabs are crashing. When I'm hitting a link and either holding Cmnd or right click "open in new tab" in order to get the linked page in new tab, the tab/window I'm using shuts down. Poof.

Using v115.7 in debian 12.

I prefer to open pdf files with the default viewer in the operating system, not on a firefox browser tab. I have gone into settings->general->applications and configured selected "Use system default application" for PDF files. If I click on a pdf file it downloads to my Downloads folder, which is the usual and preferred behaviour. If I click the downloaded files icon on firefox's toolbar, I see the file I downloaded, all good. If I open the folder with all downloaded files, and click on the file, it opens in the OS's default viewer, all good. On the other hand, if I click on the downloaded files icon on firefox's toolbar and simply select the downloaded file from the displayed list, it opens on a firefox browser tab. This is driving me bananas. How do I configure firefox to launch the default system application instead?

Dear Sir,

Shahid MBC was working perfect before couple of weeks ago

you can check from this link

https://shahid.mbc.net/en/player/episodes/Tamer-Wa-Shawqiyya-season-1-episode-1/id-1011829

Now there is some sort of an error message of HTML5 video

When I check Firefox for add ons (Manage your extensions), I see the two that I installed. When I use "Help -> Troubleshooting Information" "Application Basics": Multiprocess Windows "Remote Processes" , I see in addition: Amazon.co.uk Amazon.com DuckDuckGo eBay Wikipedia

How do I eliminate these?