Форум поддержки Firefox

I try to disable the transition to fullscreen by following the steps. But after restart the Firefox ESR (waterfox), the rule don't apply. The rule:

/* Minimize fullscreen transition time */
#navigator-toolbox[fullscreenShouldAnimate] {
    transition: 0ms !important;
}

toolkit.legacyUserProfileCustomizations.stylesheets

I'm looking for a reliable method to sync my Firefox bookmarks, browsing history, and settings across multiple devices while ensuring the security of my data. I want to make sure that my sensitive information remains protected throughout the syncing process. Can anyone recommend a secure solution or provide guidance on the best practices for setting up Firefox sync? Additionally, I'm interested in learning about any potential privacy considerations I should be aware of when using this feature. Any advice or recommendations would be greatly appreciated. Thank you

GOOGLE WILL NOT LET ME SIGN IN ON FIREFOX. I can sign in will all other browsers but I get this message on Firefox:

Couldn’t sign you in This browser or app may not be secure.

I have cleared cache, cookies. Checked for updates...rebooted, ect. Nothing works.

HELP!!!!

So I have been some issues with my Debian bookworm (Gnome bugged out) and changed to Sparky ( not a massive update I know, it's the same repo anyway) . Once Sparky Firefox upgraded to the latest version, I noticed some interesting behavior (tor running in the background and etc). I wasn't careful with playing gods with storage & cache, so had to again reinstall sparky. To my surprise my all passwords, bookmarks. add-ons are gone. I had just one account (was also using the dev browser for some time), so really it's awkward ad upsetting situation, any troubleshooting steps you can suggest?

Hello. I just wanted to add 8-10px border-radius and a thin 1px border. Just like all chromium browsers already have and even Waterfox did it too. I tried to do different things already, but I couldn't find the way how to get rid of that background with square corners. See the attached image to better understand what I mean. My attempt on the left, and Chrome on the right. These square corners (green in this case) behind. Any ideas? Thanks in advance for any answer.

Hi Team,

Good Day!

This is to let you know Firefox Browser not working after uninstalling and installing a new one.

Mohammed Muzammil Mobile/WhatsApp: [removed phone# from public]