Some useful add-ons:
Glydo is a great FireFox add-on if you are researching for content or prices of goods:
https://addons.mozilla.org/en-US/firefox/addon/8614
XMARKS is the best one. It can save all your bookmarks AND your passwords, and you can retrieve them from any computer.
Detects Duplicate Bookmarks when bookmarks are added and specify where is the previous URL. You can also search and delete duplicates URL already in your Bookmarks. Firefox 3.5 support is available from http://bookmarkdd.mozdev.org in version 1.0.0. https://addons.mozilla.org/en-US/firefox/addon/1553
If you have the del.icio.us addon, you probably hid your Bookmarks menu button. Go to the del.icio.us menu, and at the bottom you will see 'Show Bookmarks Menu'.
Firefox's https://addons.mozilla.org/en-US/firefox/addon/downthemall/
go to bookmarks, go to organize bookmarks, then just delete them
You can import bookmarks stored in HTML format from a file, using the Import feature of the Bookmarks Manager: * Firefox 2 and earlier: "Bookmarks -> Organize (or Manage) Bookmarks -> File -> Import -> From File" * Firefox 3: "Bookmarks -> Organize Bookmarks -> Import and Backup -> Import HTML... -> from an HTML File"
To utilize both, you can install Firefox and then install the 'Coral IE Tab' addon to use IE inside of Firefox's interface. https://addons.mozilla.org/en-US/firefox/addon/10909
No... you can't retrieve bookmarks
GET FIREFOX, (IF YOU DONT HAVE IT) DOWNLOAD THE ADDON ILLIMITUX AT https://addons.mozilla.org/en-US/firefox/addon/11037
Go to Bookmarks > Organize Bookmarks... > Import and Backup > Export HTML
Firefox bookmarks can be easily imported in Chrome browsers. Chrome has an option of import browser bookmarks for this.
If you uninstall Firefox and do not check the box that reads "Remove my Firefox personal data" then your bookmarks (and other Firefox settings) will be preserved because they are kept in your Profile Folder which is saved in a different location than your Firefox installation folder is so if you reinstall Firefox or update it, your previous bookmarks (and other Firefox settings) will all be intact.If you plan on reformatting your computer you must backup your Firefox bookmarks and settings to an external location such as to a USB drive, a CD, external hard drive, or use an online bookmarking service.Most online bookmarking services allow you to import your Firefox bookmarks and there some that offer automatic bookmarks synchronization between their service and your Firefox.
Even when uninstalled or deleted, Mozilla Firefox will leave your bookmarks behind. They will still be there if you reinstall it.