This thread is for users of Firefox, derivatives, and other gecko-based browsers, to share configurations, recommendations, tips, and other resources. Examples are user.js and userChrome.css files, extension lists, and screenshots that illustrate customizations.Good Pastebins for Sharing Configs:https://rentry.co/https://bin.disroot.org/https://share.riseup.net/Resources for Customization & Hardening:https://www.userchrome.org/https://firefoxcss-store.github.io/https://github.com/arkenfox/user.js/wikihttps://github.com/MrOtherGuy/firefox-csshackshttps://brainfucksec.github.io/firefox-hardening-guide-2026Worthwhile Forks & Related Gecko Browsers:https://librewolf.net/https://www.waterfox.com/https://www.gnu.org/software/gnuzilla/https://floorp.app/https://zen-browser.app/https://www.seamonkey-project.org/https://www.fosshub.com/K-Meleon.htmlhttps://forums.freebsd.org/threads/male-poon.77078/https://f-droid.org/en/packages/org.mozilla.fennec_fdroid/https://github.com/ironfox-oss/IronFox
gecko based aka based
>>109682089Here's my annotated userChrome.css:https://share.riseup.net/#JRcqaYVjjOPEZHfsBX--EABeen updating and maintaining it across releases for some years now. Works with vanilla FF, LibreWolf, and IceCat. Not recommended under Waterfox, as it breaks some UI customization options if you use their baked in Photon and Proton themes. Hope this helps some people with their own.
Literally all you need
Can I disable the new design once I update?
>>109682448dark reader kills your browser performance i suppose
>>109682469Yup
>>109682469>>109682487Is there another way to enable dark mode for the browser?
>>109682462See: >>109682270This will undo some of the more obnoxious stuff, but not everything, and you'll probably want to remove the small section that increases UI font size. If you really want to avoid Mozilla's redesigns without typing or copy-pasting a bunch of CSS, Waterfox is the way to go.
>>109682113Thank you my friend :^)
>>109682462On vanilla Firefox, no, but you might like this: https://github.com/zapSNH/zapsCoolPhotonTheme
>>109682469It does, but nothing else works that doesn't do the same. It fucking sucks.
>>109682089good thread, based. thanks.
>>109682756These are supposed to be less resource hungry, though might not be perfect for you without some tweaking: https://addons.mozilla.org/en-US/firefox/addon/midnight-lizard-quantum/https://addons.mozilla.org/en-US/firefox/addon/night-eye-dark-mode/
>>109682565>>109682704Thanks frens, will check it later
>>109682448Pretty much, but I live in cucked age verification hell so I also need a proxy switcher for certain sites as well as an extension to redirect imgur links/embeds to an alternative front-end.
>>109682448On mobile I use:>OverbiteWX>RSSPreview>Toggle View Source>uBlock Origin>Violentmonkey>Web ArchivesOn desktop I use 25 extensions, but 4/5ths of them don't actually do anything unless clicked. Before XUL was axed years ago, I probably had 40 extensions installed. Have always made sure my addons are FOSS, and that there's no overlapping functionality. My current profile has survived upgrades, manual cleanup operations, and migrations across multiple forks and operating systems since FF 36, but I've been using Firefox (or a fork thereof) since version 2, when I begrudgingly abandoned Mozilla Suite.The only non-Gecko browser I've had a similar soft spot for is Opera, which I used as a second browser for well over a decade, but once they got bought out and reworked as a Chinese Chromium fork, there was no point holding on any longer. Gecko and Mozilla family browsers have served me very well for decades, and interacting with the web would be significantly worse without them.
>>109682089Good thread. Might contribute later, I can't right now. But remember that you can vibe code the userChrome.css (and maybe .js).
>>109683435>remember that you can vibe code the userChrome.css (and maybe .js)Great point. I'm definitely going to vibe code configs for a program that I regularly type sensitive data into. Thanks for the amazing tip. I'll never forget you.
>>109683292Sponsor block doesn't have a script version?
>>109682089I've been using https://github.com/black7375/Firefox-UI-Fix to make the tabs not float.
>>109683605Thanks senpai. Will add to OP next time. Came across it a few months ago and could not for the life of me remember the repo.
>>109683292>an extension to redirect imgur links/embeds to an alternative front-endThis looks useful, thanks.
>>109683584There was Simple Sponsor Skipper, but I liked seeing where the sponsor segment was in the progress bar so I just stuck with the extension. I just found this though:https://greasyfork.org/en/scripts/590508-simple-sponsor-skipper-enhancedBut it's kind of buggy for me. I'll keep an eye on it to see if it gets updated.
>>109682448Using a shader on the window looks better, works better, and can't be used for fingerprinting
>>109683697You can do this with user scripts BTW. Some find it preferable to an extension. This is a really comprehensive one: https://greasyfork.org/en/scripts/492480-purlfy-for-tampermonkey There are a load of simpler scripts that do similar things on there too.