hello belita, please refer to [[Back up and restore information in Firefox profiles]]

'''''[https://addons.mozilla.org/en-US/firefox/addon/febe/ FEBE (Firefox Environment Backup Extension)]''''' {web link} French; '''https://addons.mozilla.org/fr/firefox/addon/febe/'' FEBE allows you to quickly and easily backup your Firefox extensions, history, passwords, and more. In fact, it goes beyond just backing up -- It will actually rebuild your saved files individually into installable .xpi files. It will also make backup of files that you choose. '''''[https://addons.mozilla.org/en-US/firefox/addon/opie/OPIE]''''' {web link} French; '''https://addons.mozilla.org/fr/firefox/addon/opie/''' Import/Export extension preferences