Since installation of Firefox 3.6.14 (update) on my Windows Vista pc, Firefox's language was changed from Dutch to English. All my open pages and tabs are gone and if I open Gmail, the Gmail desktop interface has gone: I get a very stupid screen where I can see that I have an Inbox with the correct number of mails in it, but Gmail doesn't show up as expected. All my history has gone! Can somebody please get me back to where I left Firefox 3.6.14? Change since first posted: My Gmail looks correct by now, but still all my panes and tabs are gone, my history is gone and the language was changed to English.

You can re-download 3.6.13 like I did, or the new update 3.6.15 which I am using right now. Seems to be ok, and lots faster!