Firefox Community Forum

No videos on any platform will play when I try to open them in Firefox. They are forever stuck on the thumbnail image of the video, and nothing happens when I hit play. I've had this happen a couple times and was able to resolve before by installing updates and uninstalling my Mozilla VPN, but this time nothing has worked. I've tried pretty much every solution I could find online:

• Updating Firefox
• Updating my computer
• Running in Incognito
• Running in troubleshooting mode
• Allowing autoplay
• Disabling hardware acceleration
• Disabling addons
• Clearing cache and data
• Enabling/disabling DRM content
• Installing Windows Media Pack

I'm running Windows 10, and videos seem to work fine in Edge, if that makes any difference.

When I open Firefox. Firefox Will NOT open any websites. If I disable ublock origin then enable again Firefox works but I get all the ADS. What I have to do is: Close firefox and restart Firefox but then I get this message "Firefox is already running, but is not responding. The old Firefox process must be closed to open a new window." Sometimes I have to restart Firefox as many as 10 times before Firefox works. I got to the point where I stop after the second try and just switch to Brave browser.

Before: Firefox use 99%. Brave Use 1% Now: Firefox use 75%. Brave use 25%

I have zero clue how 150+ of my mother's passwords suddenly appeared in my account. Further, why the hell many of my passwords are now GONE! My mother has not used Firefox in ages and there is ZERO reason her Google Garbage should be anywhere NEAR my Firefox account. I have been using Firefox since my early teens but I will sure as hell jump ship if there is not a damn good explanation and fix for this utter BS!!!!!

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For the past couple of weeks I have been getting the "Hmmm, We're having trouble finding that site" error screen quite often from both searches and links from other sites. It's always happened once in a while but it hasn't been anything bothersome. However recently it has become quite bothersome because it's happening a lot! However not all the time. It's not completely broken, just mostly. And it's happening while trying to visit sites that I know and visit frequently such as Amazon, Ebay, and even sites for local businesses that I trust and know are working. I'm not having any internet issues with my home wifi, nor am I having this issue with other browsers. I have however also noticed it on my Firefox mobile browser as well. I posted about this a few days ago and got some email back about an issue with my post. If this happens with this one and I'm unable to get this resolved I will just get rid of Firefox on my devices. FF has been a long time favorite and is usually set as my default browser but if stuff like this is going to continue, I can change that real fast. There are plenty of other browsers that work just fine and have decent customer support.

My Firefox settings are configured to "Open previous windows and tabs" on Startup. This worked fine until this morning, when I lost all of the tabs in my session, including the pinned ones. The last time I closed Firefox, there was only one window open.

I have already tried these ideas to restore the tabs:

• CTRL+SHIFT+T: Does nothing
• CTRL+SHIFT+N: Does nothing
• Three bar menu -> History -> Recently closed tabs: The list is empty
• Three bar menu -> History -> Recently closed windows: The option is greyed out
• Three bar menu -> History -> Restore previous session: The option does not exist in the menu
• Open user profile folder and open sessionstore-backups folder: There are three files named "previous.jsonlz4", "recovery.baklz4" and "recovery.baklz4". They are each 2KB and contain only an empty tab with the URL "about:home". There are three additional files starting with "upgrade" but they are from too long ago, so they don't contain the tabs I require.

The contents of these tabs are vitally important for my work, so this is causing me significant stress. If anyone can suggest ways to recover my previous tab beyond the documented fixes, I would greatly appreciate it. Thank you so much to anyone who can help!

After a crash earlier today within my 32bit install of Firefox, I upgraded to the 64bit version. Since then I have not been able to play videos from sites that utilize DRM.

I have tried the following:

1. Check and Uncheck "Play DRM content"
2. Check for updates while in the addons related page.
3. Checked my hosts file which is blank
4. Stopped my AV and attempted to update as well as Enable/Disable Play DRM
5. Get a 404 when attempting to go to "redirector . gvt1 . com" site.

When I looked in my profile directory, I noted that both the "gmp-gmpopenh264" and "gmp-widevinecdm" directories are empty. I found and downloaded the most recent openh264 dll for windows 64bit. Firefox continues to say "OpenH264 Video Codec provided by Cisco Systems, Inc. will be installed shortly." I have not found the most recent wildevine version so I have not tried to update it manually.

Could there be something squirrelly with my user profile that needs to be rebuilt? (I can export the bookmarks, etc) The 32bit Firefox crashed with no messages while watching a live YouTube stream. I just installed over without uninstalling the previous version. I was afraid of losing my current settings. The crash caused my "previous session" to be lost.

I wanted to upgrade and update my Firefox to the latest version. Encountered some errors so I uninstalled the old version and reinstalled Firefox' latest version. Now all of a sudden all my Add-ons / Plugins / Extentions on the latest version of Firefox for Mac OS is gone...

I am following all the instructions. It has continued to fail for the past year. I've uninstalled ff and reinstalled ff. I've tried creating new profiles. I can import everything into Chrome or from Chrome to MSE, but NOTHING will import into ff from any other browser.

i am using a loaner laptop right now while i wait for my main laptop to be returned to me. i need my bookmarks so i downloaded the browser & went to log in. i can't find my password & apparently to reset it i lose all my bookmarks which is the ONE THING i need from firefox right now. i am fully logged into firefox on that other laptop (tho who knows now that i tried logging in on my new device). i can't risk losing all my bookmarks. i need some help here, but i couldn't even get help without creating a NEW firefox account. can someone send me a support email to reach out to?

I upgraded the hard drive on my computer, first I did a full back up on an external drive. When I reloaded to my new drive, everything transferred fine, except for the bookmarks and favorites on FireFox. Unfortunately, I had forgotten my password and tried to reset it several times but somehow I kept getting messages about the wrong parameters. I don't know if it would help, but I have the original Sync Key from the old drive. Can you please help me? Thank you Monica Almas [email address] or [email address]

I contributed (paid) for the extension to capture streaming browser screen and audio to .mp4 which worked very well until my PC crashed so I had to re-download and install Firefox - now I can't capture streaming browser screen and audio to .mp4. How do I get that capability back? Thank you!

So, when I switched to my new laptop few months ago after installing Firefox (Ubuntu 22.04) all my bookmarks and passwords were imported well. I just had to login to FF. Then, once again I re-installed Firefox and again managed to get all passwords and bookmarks.

Today I again re-installed FF (have some strange crashes) and after installing it and logging in bookmarks and passwords are not re-imported?!? Logged in to pocked and it works well, but FF bookmarks and passwords are just not there. It syncs, but not finding them.

Also, my settings, like my previously installed plugins are not imported at all. Just like I'm synchronizing with completely new profile.

I don't have multiple profiles.

I'm using FF as my primary browser (web developer) and both are very important to me. Please help me retrieving them back.

In short, firefox is just a grey window, with the controls on the top.. It won't load any pages, nor open settings or open anything from the menu at the top..

I have tried everything, deleting and reinstalling, resetting, well, all the help I could find here I tried.. ..Still it wont work..

I run Windows 10 on a HP envy..

Thanks in advance..

DjLinnemann..

I have recently installed Linux Mint and it came with Firefox out of the box, and I decided to try it out, but I can't, for the life of me find a way to transfer my Opera passwords there. I do have Opera installed right now.

I've locked myself out of my Firefox account (can't use my authenticator because I got a new smartphone and did not re-add Firefox to the authenticator app). I have a logged-in device and I'm trying to go to my settings to turn of 2FA to get back in. When I try to do this, it tells me that it's sending me an email with a six-digit code, but this email never arrives. I've whitelisted, I've waited an hour, nothing.

Interestingly, I've been forced to set up a new account just to post this question, using a different Gmail address, which also required the entry of a six-digit code. But this one came immediately.

What do I need to do to get my Firefox account unlocked? As it stands, 2FA has basically killed my account forever. If that happens, it's goodbye to Firefox.

Dear supporter, our firefox is managed by our company, while download file, not sure why some file type could not setup default option, due to no check box "Do this automatically for files like this from now on", could you share how to fix ? Thanks a lot.

best regards/hing

My question is fairly simple. I have multiple microphones available to the system, shown in the first screenshot below. Most of these are physical microphone inputs, but I've also created a virtual device.

I am only able to use 3 of these, consistently the same 3 devices, in Firefox - shown in the 2nd screenshot. Interestingly, one of the devices that shows in Firefox (Teams Audio Device) I cannot find anyone else on my system. https://www.onlinemictest.com/ is a good site to allow selection of the audio device, but I get the same results across all sites that use audio - google meet being the big one.

I've gone through all settings menus and played with everything that I can find - resetting microphone permissions, clearing cookies.

I've accessed the same site (https://www.onlinemictest.com/) in Firefox Dev Edition, and I *can* select from my full range of microphones.

Interestingly, and just something I've noticed while submitting this issue, the debug info *does* include the mic devices missing from the menu!

Can anybody help me look into what's keeping my list of mics in this 'frozen' state, and stop me from having to use Chrome for work meetings?

Cheers!

Hi, I've noticed an inconsistency when clicking on Web-based protocol handlers in Firefox on Windows. Specifically, when I click on a mailto protocol, such as "mailto:email@example.com," it directly opens my default email application without any confirmation prompt. However, when I click on any other protocol handler, a confirmation pop-up appears, asking me to confirm which application to use. I have attached an example of what I mean.

Is there a way to configure Firefox to always show a confirmation pop-up for all protocol handlers, including mailto links? I prefer to have the option to choose the application each time rather than automatically using the default one.

Hi! I have more than one device for Audio connected to my laptop. Obviously the default device provide by laptop but also I have a Jabra Headset EVOLVE 20 SE MS and Jabra Speaker SPEAK 510 USB/ Bluetooth. Also my webcam Logitech C930e provide a microphone.

When I use Google Meet, in Chrome I can select on Meet Audio Device Select the different microphone or Speakers but in Firefox I can only select the Default System Speaker.

I would like to know how to change between my Audio Devices for the output or can switch between my different speakers.