I upgraded to Firefox 7 and lost all my Bookmarks and the Toolbar which I use every day for all the important things I do on my Mac.. PLEASE HELP ME... Is there some way to restore my previous settings, go back to the older version or something?

Question

PLEASE HELP!... I am seriously freaking out... I use my Toolbar all the time!... and ALL OF MY BOOKMARKS ARE GONE ALSO!

Answer 1

I am not an expert or even close, and I offer this only because this is how I figured out how to do it. I used a similar approach to importing all email accounts, email content and the address book into a new version of Thunder bird, but I assume this is common knowledge.
My system:
Windows 7 64 bit, recently upgraded from XP64. Installed Mozilla Aurora but seems the same as recent Firefox versions with respect to these features.
Limitation:
This solution depends on whether or not automatic backups were done of the bookmarks when you used your old installation. They were on my system and I don't remember doing it, but maybe I did. Others might know if this is periodically done by default. Assuming you have some backup (*.json) files,
Locate your the bookmark backup files from the old version of your browser. On XP it was located in
E:\Documents and Settings\Administrator.<your computer name>\Application Data\Mozilla\Firefox\Profiles\bookmarkbackups
Each of the bookmark backup files look like this example:
bookmarks-1010-09-22.json
They might also be located one folder deeper, in my case:
E:\Documents and Settings\Administrator.<your computer name>\Application Data\Mozilla\Firefox\Profiles\x72qybcl.default\bookmarkbackups
Again, they will look like this:
bookmarks-1010-09-22.json
Copy all of these .json files to the backup folder on your new installation. On my new Windows 7 file system system I found their new home at:
C:\Users\Art\AppData\Roaming\Mozilla\Firefox\Profiles\0ptl24i3.default\bookmarkbackups
On an XP system I'm sure they would be found along a path, possibly on a differed drive, similar to where your got them from as above.
I fired up Aurora. Drop down "Bookmarks" tab, Select "Show All Bookmarks" (found near the bottom). This brings up the "Library" window. At the top of the window is a tab "Import and Backup". Click this and select "Restore". All of the prior backup files will be available indexed by the date of backup. Select one and all of your prior bookmarks will be repopulated, including the bookmarks Toolbar.
Hope this helps.