Explore powerful tools and features to customize Firefox and make the browser all your own.
Download YouTube videos in all available formats and extract the original audio files
Free and improved ad blocker. Completely remove ALL ads. No "acceptable" ads or whitelisted advertisers, block tracking, block malware!
Quickly and easily switch between popular user-agent strings.
Easily download most popular video formats.
Squared tabs, application menu, add-on bar, small button view and many more 'old' features for 'Firefox 29-56', not for Firefox 57+! Release builds Beta builds
Australis was the code name for the current Firefox theme, it aimed to make a great browser look awesome. Now you can go one step further and also make it feel awesome to use!
Does everything for an HTML table: Copy (table/row/column/cell), Sort (multi-column), Search (regex, range operations ...), Filter, Chart, Statistics, Rearrange, Combine/Compare. To use: Right click in a real HTML table for the "tabletools2" option.
Tab Groups are an easy way to organize a lot of tabs. You can visually group related tabs, switch between groups, and quickly search through all of your tabs to switch to a specific one.
Allows you to specify the time to restart browser.
Overlay Scrollbars for Firefox.
Open and download links with IDM (Internet Download Manager) - the fastest downloader, compatible with new Firefox Quantum 57+.
AntiMiner is #1 Miner Blocker, helps to stop coin miners, cryptojackers and block mining scripts from your CPU. Best MinerBlock tool