Firefox Community Forum

Important update! On March 14, 2025, a critical root certificate in Firefox will expire. If you’re still using an older version (before Firefox 128 or ESR 115.13+), it’s crucial to update to Firefox 128 or newer to avoid issues with add-ons, DRM-protected content, and other features.

For full details, check out Update Firefox to prevent add-ons issues from root certificate expiration.

If you have questions about the update or need help with the process, this is the place to ask! Whether you’re just starting or you’ve already updated and want to share your experience, we’d love to hear from you.

Let’s come together, share tips, and ensure we’re all prepared. Drop your questions or insights below!

Hello. I have a problem with Firefox since today. When I am on YouTube I no longer see the thumbnail image of the video. However, when I am in private browsing it works fine. How can I fix this? Regards, Julian.

https://download-installer.cdn.mozilla.net/pub/firefox/releases/135.0.1/win32/en-US/Firefox%20Installer.exe

Since the settings haven't given that option for years, the best way to have a local file as the new tab page was using autoconfig.cfg + autoconfig.js, as described in this thread: https://support.mozilla.org/en-US/questions/1251199 But since the most recent update (v136.0), this stopped working.

The New Tab Override add-on has its own issues with using local files (can only load a .html file, no local CSS/JS, can't give a blank address bar for me to search in), so it doesn't solve the issue either.

This is very important to me, and others have been asking for this feature back for years. It feels awful to have the working solution stop working, in the browser that's supposed to be open and customizable.

Due to relevant policy and legal reasons, the Chinese version of Firefox has been used https://accounts.firefox.com.cn/ As a login account URL, it is also used in the international version https://accounts.firefox.com As login URLs, the two accounts are not interconnected. After recently upgrading to a new computer and downloading Firefox again, I am unable to use the synchronization function https://accounts.firefox.com.cn/ Login to the account, the specific manifestation is to enter the correct password when logging in, and it will continue to display 'processing'. But by directly entering the above website address, you can log in to your account normally. I now need a solution to the synchronization issue by moving bookmarks, plugins, themes, and synchronized tabs from my previous Firefox computer to my new computer.

由于相关政策法方面原因，中国版的firefox使用了https://accounts.firefox.com.cn/作为登陆账户网址，同时而国际版使用https://accounts.firefox.com作为登陆网址，两者账户不互通。

最近换了新的电脑以后，重新下载firefox，使用同步功能时，无法使用https://accounts.firefox.com.cn/登陆账户，具体表现是登陆时输入正确密码后登陆，一直显示处理中。但是直接输入上述网址，可以正常登陆账户。

我现在需要可以解决同步问题的方法，将我原来电脑中firefox中的书签，插件，主题以及同步的标签页移动到新电脑中。

I'm having trouble with Firefox automatically blocking certain websites that I trust. Even after adding them to the exception list in the privacy and security settings, I still get the "This site is not secure" warning. Does anyone know how to fix this issue or allow these trusted sites to bypass the warning in Firefox?

3-10-2025

Time Monday 9:03 

Business:ceo kilkenny contracting Michael Patrick kilkenny jr Kilkennymichael28@gmail.com Wwwmichael@patrickkilkennygmail.comLLC One person business Single never married Request Wallstreet small business newsletter 25-30 years stocks and bonds and more request for all Mailing details and accounts to close at once and I request that Allowance taken off my name is michael Patrick kilkenny jr yes I did passaway and came right back now I am ready for me to confirm this request thank you michael Patrick kilkenny jr 3-10-25 Monday 9"07pm

why the fuck will no fucker do their fucking job and provide help in stead of all this fucked up fucking around for no fucking support. Get your fucking head out of the bosses ass and fix this shit. Fucking make contact for fuck sake. Firefox is becoming very crap. And the support is more shit than I can explain.

Hi, I've been a use of FF since it was Netscape (yes I'm old). And its always been my favorite above all. However, with the recent update (ver 136, either installed from a .tar downloaded or an app via apt install) it starts fine but no matter what URL I try to access the busy indicator spins but nothing ever happens. I've tried disabling all my extensions to no avail. I'm also searched for others experiencing this issue. All my other browsers seem to work well on all the same sites.

I'm kind of at a loss so if anyone has any suggestions/ideas please share?

Thanks BobMCT

Hi!

I've noticed dropped frames in videos for a while now, but only recently tested the issue. Using youtubes stats for nerds, I found that when videos have a small viewport resolution, it starts to drop frames. (I would test with other sites but only know of youtubes stats for nerds system to detect issues like this) For example a viewport resolution of 1250x703 does not drop frames, however by unmaximising the screen and the viewport resolution drops to 681x383, it begins dropping frames.

Using my 2nd monitor which has a smaller actual resolution, the video drops frames unless fullscreened, see recordings below. Test A | Firefox Maximised but video not fullscreen Test B | Firefox Maximised and video fullscreen This issue also occurs with picture-in-picture mode.

Disabling hardware acceleration fixes this issue but for some reason only affects firefox, using MS Edge with "graphics acceleration" enabled does not result in this issue. Is this potentially an issue specifically with how firefox handles hardware acceleration? Also since I require hardware acceleration to be enabled for 3D model work in my browser, is there something I'm missing here that would allow me to keep hardware acceleration on but not have this issue?

Any help is much appreciated, thanks!

Hey all,

Last night I made the mistake of clicking a sketchy link on twitter thinking what it was some meme site( the person who tweeted is someone I know personally so I thought it was safe) once I clicked on it, I wasn’t redirected to the site so I thought it was weird then once I learned that he deleted it because it was compromised. I got scared and I was running scans through Microsoft defender. After the full scan it said that it detected Trojan:HTML/Phish!pz and the affected files where C:\Users\….\Local\Mozilla\Firefox\Profiles\cq0glqqq.default-release\cache2\entries. I deleted my cache a few hours later than I should.

So I reached out to a friend and they told me that it was probably was a false flag and I didn’t need to delete my cache. But I’m nervous that it’s an actual threat and I should do more to ensure my computer is completely safe. Also probably a lot of grammar mistakes I haven’t slept since I got this information.

According to Firefox Help, "After you have defined and set your Primary Password, you will be prompted to enter it once for each Firefox session, when Firefox needs access to your stored passwords." But since updating to version 136.0 I get asked for my Primary Password even to see my home page. Why is this?