Firefox ''does'' support AdBlock Plus, otherwise it wouldn't be listed on <BR>AMO (addonsmozilla.org) : https://addons.mozilla.org/en-US/firefox/addon/adblock-plus/ Many users have been using AdBlock Plus for years. What makes you say that Firefox doesn't support the add-on ? Error messages ? Having trouble installing it ? --------------------------------------------------------------------------------------------------------- Seperate issue : Your system details show that you need to update your Adobe Flash Player - you're running an old version, which can cause problems. Would you please uninstall your current version and install the latest version, which is '''30.0.0.154''' Uninstaller : https://helpx.adobe.com/flash-player/kb/uninstall-flash-player-windows.html https://get.adobe.com/flashplayer/ Note : some 'extras' may be offered in the download.