Hello, When I try update firefox using search for update in "about firefox" window with a limited account in Windows XP sp3, it searched (circle is running) then nothing happens (circle continues running with the text "search for update" continues showing). Automatic update never happens too even with option "install automatically updates" checked. The option "Use a background service for install updates" is checked too. This behaviour begins with Firefox 29 (Australis theme). Updates worked on previous version. I used Firefox with French localization so maybe my translation of menus, options and buttons are not right. I try to give "modify" rights for the limited account on "Mozilla Firefox" folder and "Mozilla Maintenance Service" folder but it doesn't work too. Is it a known bug ? I found on bugzilla this ( https://bugzilla.mozilla.org/show_bug.cgi?id=711475 ) but it is said resolved fixed. Or there is an another solution ? Thanks for your support.