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I've been having problems with some websites not displaying content, others displaying error messages. So have been going through the Troubleshooting Mode and diagnostic process.

The cause is the MS CoPilot extension for Firefox.

Useful in other ways as I discovered several other extensions I don't need, hence have remained disabled.

I have a problem where if I install the packages needed to get hardware video decoding working in firefox it completely breaks YouTube playback. I can't find any info on the internet about the problem and I am having a lot of trouble with it. YouTube playback with libva-mesa-driver and libva-vdpau-driver will start stop restart start playing audio then crash with a this error every single time. I am at my wits end trying to figure out this problem and I would love help figuring out the problem I am using firefox-developer-edition as a note thanks Ozzy

I am sure someone has asked the question before but couldn't find the answer. Why dark mode has to be different than other dark modes on other apps. Colours really does not match nicely with my phone. I used Samsung Fold and its really unpleasant.

This question was asked by someone else in November 2023 but never sign answer. When I click on a link to an address Mozilla should open my Google maps and put that address in automatically. Instead it goes to the Play store to download Google but since I already have it installed I click continue and it opens up Google maps but no address. How do I fix this or is this a glitch in Mozilla?

Hi. Strange request I know because Firefox is working perfectly but Google has failed me.

We have a printer/copier in our small club. The IP address assigned is 192.168.1.125. Typing this into a browser should bring up the copier admin dashboard.

When I do this using Firefox everything works fine, BUT when I use any other browser such as Chrome, Edge or Opera I get the "Cannot connect" "Error connecting" etc message.

I removed Bitdefender antivirus and disabled Windows Defender but it's still the same.

Any network people who can point me in the right place as to where to look or report to the correct forum.

Apologies for posting in here when it's not a FF problem.

Thanks in advance TQO

Dzień dobry. Używam Mozilli Firwfox: 125.2.0 (Build #2016016039)

Mam dużo otwartych kart. Po zamknięciu kilku kart, gdy wyjdę z aplikacji (zminimalizuje ją) i wejdę ponownie karty które zamknąłem nadal są otwarte. Tak jakby otwierają się na nowo. To bardzo duży problem, nie mogę zamknąć kart. Nie znalazłem nigdzie odpowiedzi na ten problem Proszę o pomóc Pozdrawiam serdecznie

Others asked and were pointed to extensions. As long as extensions get access to my pages, I'm not willing to use any. So, is there an option in advanced settings, to return to previously viewed tab when I close a tab? Thanks, Cat

Firefox is working in background and draining the battery. That what I see in battery usage information. I have tried to limit and stopped Firefox but it is still on the top of battery usage.

I just started using Firefox again this week and I'd like to know if there's any option or add-on for Firefox mobile to have better video playback control like Samsung Internet with (video assistant) or an option to open with an external player, I've looked but can't find any way to have better playback controls. I love Firefox and want to keep using, but this is a huge feature for me.

Starting with my bank's web site, my user name/password is being challenged. I can't bank. Elsewhere, where my desk top has always been recognized, I'm now forced to log in each time...and I receive an email that a new device has just logged into my account. All of this suspiciously coincides with a recent browser update. On my bank feedback it's showing as Firefox "125"...when all previous logins were recorded as Firefox "124". Help!