Is there an addon that protects the Firefox tab bar from being changed?

Question

Mozilla Firefox

Is there an addon that pins the bookmarks bar so you don't accidentally delete a bookmark?

Answer 1

I'm not sure, but it seems like the Session Manager makes regular backups of numerous settings, including even the list of open tabs, which repeatedly saved it from crashing.

Answer 2

And if you make links like these?
ln -s /var/www/user/site1 /home/user-dev1
Well, or mount -o bind /var/www/user/site1 /home/user-dev1/site1