Firefox Support Forum

I run Firefox Developer Edition.

I recently added some lines to my hosts file (C:\Windows\System32\drivers\etc\hosts). Despite these additions, Firefox ignored the hosts file and loaded the pages I had blocked just fine. So I tried a multitude of options like disabling "Enable DNS over HTTPS" and eventually I got to work and the hosts file was respected.

So after thinking about it for awhile, I actually DO want Firefox to ignore the hosts file like it did before I made the change. I reverted the "Enable DNS over HTTPS" setting to its default of enabled, and I've tried everything else I can think of, but I just can't get it to work.

How can I configure Firefox to ignore the system HOSTS file and load blocked pages anyway?

Could really use some help.

Hello, We are developing an extension which is built on manifest v3. Right now in the firefox MV3 is not available by default and user has to enable it manually. I wanted to understand the timeline for the MV3 release. So that we can decide to support MV2 or not in our extension

Every time I work on the local environment a lot of my extensions go crazy on localhost, throwing enormous amount of errors. This makes console barely readable. Is there a way to disable messages thrown by extensions in the developer tools of Firefox Developer Edition?

Similar to this in Chrome with "Selected context only": https://superuser.com/a/1346827

Thanks.

I have a laptop with Ubuntu 22.04. Firefox 307 from deb package works perfect. I wanted to give a try to Flatpak variant 306, which works well too, except two finger gestures back and front won't work. Scroll works. Any scheduled fix for that? Would be cool to move to flatpack completely.

I've recently been having troubles playing videos on Firefox.

My school website uses Vimeo embeds, but recently when I've put the videos in fullscreen, after 4-5 seconds it stops responding. The video freezes but the audio continues, and the controls don't come up when I move the mouse. I can press ESC to exit fullscreen, but the controls are still gone and the audio keeps playing. Then after a few more seconds I get the warning "This page is slowing down Firefox, to speed up your browser stop this page".

If I don't use fullscreen but instead zoom in on the page, it also freezes. If I try the same things with Edge it does not freeze. I also made sure that it was only affecting Vimeo videos, by testing with other platforms and other vimeo links.

I found previous reports of this issue, but all of them were either on Linux, or it was an issue with flash player, which is not relevant anymore.

Not quite sure how to debug this but I would be happy to provide further info. It's really important that it works again :/ Thanks in advance!

My repro steps: 1. Find a video on https://vimeo.com/watch 2. Play it and enter fullscreen 3. Wait around 6 seconds

I have recently updated my site to run off a different hosting provider, and CloudFlare, a long needed change to my site. However, in doing so, my site has become unreachable on my laptop, with firefox (and other browsers) still thinking that my domain is attached to the old nameservers, causing it to redirect to the "site not found" page of my previous hosting provider. I have tried flushing my system's DNS cache, clearing my browser cache, clearing the browser's DNS records, all to no avail, however, I do know my site works, as on my mobile phone with basic Safari, the site works fine.

my system is on Ubuntu 22.04, and running firefox version 107.0

Lately every time you release an update you break something in how Amazon is displayed. Not on all pages, the initial main page is fine, but if you try and view any lists or past purchases the display is unreadable. I've noticed this in the past, but this time it happened right after your last update, so I conclude that's where the problem lies. The attached screenshot is of my Amazon Wishlist. If you have one of those you'll notice the appreaence is way off. And BTW I was trying to delete the list, or perform any of the other actions that result in those warnings. Thank you.

Hi, My 2019 16" MacPro crashed when I downloaded the new Ventura OS. Only fix, per Apple, was to wipe the disk clean and reload the OS (Ventura 13.0.1). I reloaded and I lost my Firefoz and all the bookmarks I had. I need to retrieve them. How do I do that?

I am blocked from my account on PJMedia. PJ says the problem seems to be with Firefox since I can get in using Chrome. This is the message the mail system returns: Undeliverable: Delivery Status Notification (Failure) Mail Delivery Subsystem <mailer-daemon@googlemail.com> You Message blocked Your message to pjmediavip@townhallmedia.com has been blocked. See technical details below for more information. The response was:

Message bounced due to organizational settings.

Any suggestions? PJ seems unable to resolve the issue.

Operating System Windows 10 64 bit firefox version 107.0

having issues with an anime website watch cartoons online, most of the episodes, on several anime(dubbed) state "timeout err" and then say unable to play vid, refresh, but no matter how many times i refresh none of the videos that i know should work are working now. i have no add ons at all, as far as im aware, no pop up blockers, no viruses detected on computer, and now at wits last end trying to figure out what the problem is...

Ever since I loaded version yesterday Firefox periodically crashes when undertaking normal functions. For example I will load a set of tabs that i have been loading for years and now doing so causes a crash. Worse still of the 8 to 10 crashes I have experienced in the last 24 hours only 2 are recorded on the "about:crashes" feature and one of those fails when you attempt to submit it.

Now this has only started hapening since I upgraded to version 107. It is clearly somerthing to do with that update and the only further thing I can think to do is a full reboot in case some rogue process is interfering with the new version.

NB Please note I'm not interested in excuses about add-ons and the rest being the problem. it was this update that has destabilised my browser. Your Update. Your problem. Own it.

Regards Anona

I have 3 PCs with Firefox. The bookmarks and bookmarks toolbars were all synced but one machine required re-installation, and now I have a fresh Firefox and have forgotten how to import the bookmarks and bookmarks toolbars. I don't seem to have any password for Firefox sync and I can't find where and how to import the bookmarks. Can anyone help?

Hello, I am trying to get FF to keep some cookies for intranet sites, so that I dont need to login all the time when I open some sites on the intranet. Currently I have: Cookies&Site Data: Delete cookies and site data when Firefox is closed, An entry in "Manage Exceptions" for each server address (e.g. https://host.domain.tld) with "Allow". Privacy&Security: Use custom settings for history, Clear history when FF closes, in "Settings" everything ticked. But I still need to login on all sites after I closed FF.

How can I avoid this logins everytime I open a site?

For some reason whenever im typing something it takes a while for it to pop up in the screen after im done typing. Its happening right now as Im writing this. Can you please help? Its happening on all my computers and servers.

I'm on Windows 10 Pro using Firefox 107. As soon as I open Firefox it opens and audio stream (I see Firefox show up in the volume mixer). I don't think that is supposed to happen, there is no audio to play I have not even browsed to any website yet. My home page is Firefox default homepage (so no audio there).

I have tried troubleshooting it: opening only a troubleshooting instance of Firefox (nothing else) but again I see the audio stream opening (so that rules out the add-ons right?) I've created a new profile in about:profiles and opened only a Firefox instance on this new profile but again the audio stream opens as soon as Firefox opens.

I have not recently updated my drivers. In the past this did not happen.

Because of this, my laptop never goes to sleep and the battery runs out if I have any instance of Firefox opened.

How can I fix Firefox so it only opens an audio stream when there is audio?