I'm used to visit some sites that block non-IE users, for those sites i fake my useragent by adding general.useragent.override.address.com in about:config page. since i upgraded to firefox 25, this do not work anymore, i saw this thread: https://support.mozilla.org/en-US/questions/976003 removed useragent swicher addone and restarted firefox - nothing happened, my useragent on those web sites is still FF default. general.useragent.site_specific_overrides and general.useragent.enable_overrides are set to true. OS: ubuntu 13.04, 64bit

Bug 933959 - general.useragent.override.[domain] (about:config entry) stopped working