I can confirm the same problem with Firefox 11 on Linux Mint 11 64 bit. It has been doing that for a couple of versions. It is being caused by the addons that I have installed on Firefox, as some update their software or lists when Firefox starts, and this blocks the browser

To confirm if this is your root cause also, close all Firefox browser windows, and then from a terminal or Alt+F2 dialog run:
- Code: Select all
firefox -safe-mode
Choose to continue to safe-mode (without making anything permanent

). If your bookmarks are now fast, it is being caused by one or more of your addons. Either accept that starting Firefox will take some time, disable automatic updates on each addon (if they have such an option, that is), or reduce the amount of addons installed.
I've accepted Firefox will have a slowish start, and just installed more addons... Hey, I need my Firefox armour-plated
