Firefox Support Forum

I updated my Firefox today and now videos do not play.

I had this problem back in April after an update and I spent weeks troubleshooting it. Eventually I got it to work after trying all of the following (then, and again now):

Things I've Tried: 1.) Clearing data (cache and cookies) 2.) Turning off "Strict Mode" 3.) Running CCleaner 4.) Disabling/enabling HW acceleration 5.) Checking that the DRM box is checked (and trying it without it checked) 6.) Refreshing Firefox 7.) Uninstalling/Reinstalling 8.) Updating my Windows install 9.) Updating drivers 10.) Disabling all Firefox extensions 11.) Running without extensions 12.) Running in Firefox Troubleshooting Mode 13.) Running Windows in Safe Mode with Networking 14.) Running a fresh install of Firefox without signing in after deleting all traces of Firefox from my PC (including Program Data folders, registry entries, etc.)

What finally worked back in April was to dive into "about:config" and change "media.rdd-processenable" to "false".

That fix does not work this time around.

In the meantime I've been using Brave and having no issues. I've tried video playback in Chrome, Opera, and Edge on this computer with no issues. This playback problem is exclusive to Firefox.

Video playback still works just fine on my 4 home PCs running Windows 10 and Pop_OS (3 self-built, one Asus laptop) using this same build of Firefox.

Other/Rant: I suspect this is a Firefox/Windows 11 problem. Most likely this is not something I can fix myself, but it's incredibly frustrating since I'm buried deep in the Mozilla ecosystem and use it for work. I'd prefer not to have to swap between browsers just so I can watch videos; too many windows open on this tiny work laptop isn't fun to juggle. Basic video playback is the #1 thing I use my web browser for at both work and home so it'd be nice if this irritating, months-long, unacceptable issue were resolved. A modern browser that has video playback issues? What good is it then? What's most irritating is that it seems I'm the one of a very small number of users with this issue, since I see very little posted about it online.

I've been a Firefox user primarily for almost half a decade now - moved over from Chrome for privacy issues. Never had a problem until 4/22 of this year and considering it's still an issue 3 months later... it has me re-evaluating the reliability and my commitment to an otherwise amazing browser.

My muscle memory has me constantly clicking just slightly to the right of where the furthest right tab is. It feels weird stretching alllll the way right or alll the way left. I've tried both spots and it just feels unatural to me. Obvioulsy I'll get used to it after a while its just I'd like it to be back to where I'm used to it being.

Hello. All of a sudden i have been getting prompts just before completing gmail sign is asking if i want to switch to html or default.I chose default,tried to sign in again,and got this legacy version of gmail with messages being listed in html format which is brutal.What caused this ? how do i get it back to the way its always been? Whats going on with this,and why is this even happening? Its also saying i used a tablet or mobile device to sign in twice,and i dont ever do that. How can i get it back to the way its always been? Have tried googling all of this but it happens on its own,and sometimes it doesn,t after i sign out of the html ,and reboot,but its unpredictable,and its like stuff has been altered. Thankyou.

Before the new update of Firefox the drop-down menu would color itself a red color, if one of the options were already chosen. For example, if a webside had selectable options of answers in a drop down menu, and answer A already was selected, it's fillcolor/highlight would be red - ensuring the same options wouldn't be chosen multiple times.

How do I get this "feature" back?

My logins and passwords have all disappeared. Login.json is now login.json-1 and there are 3 more files labeled the same way but have 2,3 and 4 after the login.json. Type of file says corrupt. How can I get my passwords back?

Good morning, I have problem with printing on Firefox. On the earlier version view in the filed printers look:" name_printer on print server" but now its look: "\\print_server\name_printer". Please check this because this problem occurs in many users in my company.

This problem not occurs in Google Chrome. Thank you for handling the matter quickly. :)

MacBook Pro OS High Sierra Firefox version: 106.0b4

When I bring up Google Maps I put the address in and Firefox shows an error message. This has been happening for a couple of months. See Error Message below.. Google Chrome has NO problem pulling up the address. How can I fix this? Thank you.

Hello

Is there way how to organize my addons to groups on firefox toolbar? Let's say that I want to have folders or containers or groups for: video addons, shopping addons, searching addons, tabs addons, ... (see attached image).

This is the message when the sync between devices failed. Wrong state for fxaccounts:pair_supplicant_metadata. Valid expected states: PendingConfirmations, PendingLocalConfirmation. Current state: Errored.

Dzień dobry przedwczoraj zalogowalem sie na nowe urzadzenie, zapomnialem hasla wiec je zresetowalem. (Chodzi o konto z ktorego pisze) Utraciłem wszystkie hasła z Firefox Lockwise, czy mogę je jakoś odzyskać? Ze starego urzadzenia automatycznie mnie wylogowalo.

Clicking to open a tab browsing usually results in about:blank appearing on the task bar. This always occurs in a gmail page. In addition, some websites are very slow to open.

I had to stop using Firefox over a year ago because almost every time I'd come upon a video, the page went crazy--like it had 5 pages jumping on top of each other. I'd lose control of my mouse and couldn't close Firefox or access Task Manager. Basically, nothing worked. About 3 months ago I tried Firefox again and was so happy because I was able to use it again with no problems--UNTIL the past 2 Firefox updates. Now it's back to the same old problem and I'm back to using Chrome. Why is this happening and is there any solution?

Firefox is the only browser that I cannot load a site.

With firefox I get: Secure Connection Failed

An error occurred during a connection to licensing.nypdonline.org. Peer’s Certificate has been revoked.

Error code: SEC_ERROR_REVOKED_CERTIFICATE

   The page you are trying to view cannot be shown because the authenticity of the received data could not be verified.

All other browsers see the site as OK

Firefox will no longer load. Task manager shows it is running, but nothing comes up on screen. All of this seemed to have started when I downloaded Thunderbird, which I have also deleted off the computer. That is the only thing I have downloaded on this computer. I have noticed a white box appears on screen, bottom right corner every time I try to open Firefox. Nothing is in the box. I have deleted and reinstalled the software. Nothing seems to work.

My system is Windows 10