- Make sure you restarted Firefox after copying files.
- Check if you copied files right!
your root profile folder should look like this:abcdefgh.profileName └─── ...some folders and files... └─── chrome └─── .icon └─── .readme-img └─── userChrome.css └─── userChromeAnimations.css └─── (etc.) └─── ...more folders and files...
and NOT like this:abcdefgh.profileName └─── ...some folders and files... └─── chrome └─── rainfox-master └─── .icon └─── .readme-img └─── userChrome.css └─── userChromeAnimations.css └─── (etc.) └─── ...more folders and files...
or this:abcdefgh.profileName └─── ...some folders and files... └─── chrome └─── rainfox-master └─── .icon └─── .readme-img └─── userChrome.css └─── userChromeAnimations.css └─── (etc.) └─── ...more folders and files...
- Open
about:config
and check if you enabled all the required variables
listed in the installation guide - Make sure you using the last versions of both Firefox and RainFox.
If you're on Firefox Beta/Nightly, try downgrading to stable version - Is your operating system compatible with RainFox?
- If you're using Windows 7 or higher, everything should be fine
- You may experience some problems on Linux depending on what DE you're using
- macOS and other systems are not supported.
- If everything above didn't work... well... try cleaning or reinstalling your Firefox or ask help at /r/firefox