Finally mite update frm FF 3.6 to 14 for the html5 (on last update frm 3 to 5 google's services dint work). will history, bookmarks, site prefs etc be retained?

Question

finally mite update frm FF 3.6 to 14 for the html5 (on last update frm 3 to 5 google's services dint work). will history, bookmarks, site prefs etc be retained? active logins probably wont. plugin & extension compatibility not really important.
also, if i simply hit update and get it done, will that opera-like 'Firefox' menu show up or will i have to do a clean install to get that?

Answer 1

Be aware that if you've used the current profile before with a Firefox 4+ version there there may have been leftover files from that 4+ version that may be causing problems.
See also:
*https://support.mozilla.org/kb/Backing+up+your+information
*http://kb.mozillazine.org/Profile_backup
You can create a new profile as a test to check if your current profile is causing the problems.
See "Basic Troubleshooting: Make a new profile":
*https://support.mozilla.org/kb/Basic+Troubleshooting#w_8-make-a-new-profile
There may be extensions and plugins installed by default in a new profile, so check that in "Tools > Add-ons > Extensions & Plugins" in case there are still problems.
If the new profile works then you can transfer some files from the old profile to that new profile, but be careful not to copy corrupted files.
See:
*http://kb.mozillazine.org/Transferring_data_to_a_new_profile_-_Firefox