to fix this issue: change the "bidi.edit.delete_immediately" from about:config to "true"
https://bugzilla.mozilla.org/show_bug.cgi?id=1034337 ** Bug watch added: Mozilla Bugzilla #1034337 https://bugzilla.mozilla.org/show_bug.cgi?id=1034337 -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to firefox in Ubuntu. https://bugs.launchpad.net/bugs/1405930 Title: must press backspace twice to delete one Persian/Arabic character Status in firefox package in Ubuntu: Confirmed Bug description: Ubuntu 14.04 Firefox 34 English characters have no problem but when I want to delete a Persian/Arabic character I have to press backspace twice to delete only one character. This bug occurs in text areas where a user can insert text, for instance search bar. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/1405930/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp