leechcraft Build CleanWeb for ad blocking compatible with Firefox's AdBlock+. Build FatApe, GreaseMonkey userscripts support layer. Build FileScheme for accessing local URLs. Build FUA for faking user agents for different hosts. Build Keywords for adjusting search shortcuts. Build OnlineBookmarks for syncing bookmarks with social bookmarking services like Read It Later. Use dev-libs/libpcre for rules matching in CleanWeb instead of slower QRegExp. Build WYFV for replacing Flash-based video players on some sites.