Firefox Support Forum

Linux Firefox updates frequently, and whenever it does the preferred Search Engine is changed back to google. How do I prevent that happening? Even better, how do I remove google permanently from the list of possible search engines?

Twitter Video Streaming in Firefox on an older computer (Windows 7) does not work. The videos don't play (just audio). I logged into my same Twitter account on Chrome on the same computer and Twitter video streaming worked perfectly. Please fix the disparity.

No Video with Supported format and MIME type found is not allowing me to play videos on website.

No idea what's the cause of it, I've tried everything from internet tips how to solve this.

Since changing to a new monitor and running at 1440p, the menus and url bar are in tiny mouse print. The searching I've done so far seems to point to an update removing user control to change the font size on those items. I've adjusted settings and the pages are fine, but the two things I mentioned are almost unreadable. How can I increase the font size there?

When site asks for verification code - I copy it from email into web site. The code is not recognized. Does Firefox keep changing my computer's address? Using Win 10. I have uninstalled/reinstalled FF several times. System keeps crashing. What's happening Me novice, 78yrs old etc.

Hello,

In my newsletter subscription options, I did NOT checked the "Firefox Account Tips" option but I keep receiving mail saying this : "You're receiving this email because [edited] @gmail.com has a Firefox account and is subscribed to Firefox Account Tips."

Could you please fix this issue so that I don't receive these mails anymore ?

Thank you in advance,

Mikael

Hi Firefox,Why does it have New York as my location ;that is NOT correct I live In New Sharon Maine ;that is my location. I have been having glitches and I'm going to contact an IT person soon if it continues. Sincerely, Dawn L. Brown https://www.beartodream.net

While doing some virus discovery tests with Windows Defender and other AV products I realized that with Firefox files are not scanned when download finishes. With Chrome and Edge the Windows Defender immediately checks and blocks malicious files. Not so with Firefox. Then the file is only checked and blocked when opened.

After some research I found that in the past there was an Option `browser.download.manager.scanWhenDone` but this seems no longer available. Under Security software in about:support Windows Defender seems to be correctly set.

Is there a way to have files immediately checked by the AV after download in Firefox completes?

Hi!

I have encountered this really annoying problem on my Firefox app. I give details below. I installed Mozilla Firefox on my freshly installed Ubuntu 22.04.1 LTS. I tried installing it from Snap Store. However, when I tried saving an image from the web (or, truthfully, any other file chosen by the "Save As..." selection), nothing happened, again and again. I tried many things, including following relevant guides from the internet, but nothing changed. The Firefox version is the 107.0.1 (64-bit), a Mozilla Firefox Snap for Ubuntu canonical-002- 1.0. I, also, have to report some other things, as well. When tried installing the browser from the internet (I downloaded a compressed file, containing the executable), the same function seemed to work. I, now, use the executable to access Firefox. However, firstly, because other difficulties (not problems, but difficulties) arise and, secondly, because I'd really like ti use, mostly, snaps, I report this bug here requesting for help, as well.

Any helpful answer will be appreciated!

Thank you!

A msg. suddenly appeared at the top of my ff general settings page saying "your organization is managing your browser". Upon clicking on it it appears that Chrome has taken over most of my ff settings and disabled some of them. I have NO organization; I am retired and have a personal computer that only I use for personal things. I have run numerous anti malware programs that have found nothing. I have restored the computer to a much earlier time. I chose Firefox, NOT Chrome. Please help me get rid of this. And please don't assume I have knowledge as I am old and not very computer literate so if you could use simple terms I can understand that would be much appreciated. If no help, what can I do next to get some. Thank you I am using Windows 7 home premium on an older Dell business machine.

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.