Perform the suggestions mentioned in the following articles:

• Restore bookmarks from backup or move them to another computer
• Recover lost or missing Bookmarks

Check and tell if its working.

My Firefox was disabled due to my using an iBook G4, so I lost all my bookmarks. Tried going to my Profile folder without success. I am unable to download the current Firefox because my iBook does not support it.

See this article -> http://kb.mozillazine.org/Lost_bookmarks

Check and tell if its working.

You can create an HTML backup or a JSON backup on the iBook.

• HTML: Bookmarks > Show All Bookmarks > Import & Backup > Export HTML
• JSON: Bookmarks > Show All Bookmarks > Import & Backup > Backup

Restoring a JSON backup will replace all your current bookmarks (you get a warning about that), so if you already have bookmarks that you wish to keep then export them to an HTML file before restoring the JSON backup. You can import that HTML file after you have restored the JSON backup to get back your current bookmarks (you need to remove duplicates). You can't import a JSON backup to add (merge) bookmarks.

Importing bookmarks from an HTML file adds the imported bookmarks to the already existing bookmarks, so you may need to remove duplicates.
An HTML backup doesn't support tags and annotations, so if you want to preserve those then you need to use a JSON backup.

• http://kb.mozillazine.org/Backing_up_and_restoring_bookmarks_-_Firefox
• http://kb.mozillazine.org/Export_bookmarks
• http://kb.mozillazine.org/Import_bookmarks

Consider switching to a cloud-based bookmarking platform. With a cloud-based platform, there's no need to backup, sync or import your bookmarks because they are automatically backed up and inherently synched and all your bookmarks are always available using any browser from any computer, mobile phone or tablet. My company operates http://iCrumz.com, a free cloud-based Internet bookmarking service. The iCrumz interface allows you to have 100 or more bookmarks on a single webpage without being cluttered. iCrumz also offers an import function, so you can import and consolidate all your bookmarks from all your browsers on all your devices. Check out our short (1 minute) intro video: http://youtu.be/QDD23whIlrw Contact me if you have any questions. Matthew[at]iCrumz[dot]com.

Hi: I apologize for responding so late, and thank you so much for your two responses. As I am not a tech person, I did not understand or know how to do the things I was prompted to do. I had to finally ask my neighbor to look and all the responses I received from the Firefox postings on my lost bookmarks. Thanks goodness my neighbor was able to retrieved my old bookmarks, but it took him awhile to figure it out. Again, thank you for your help.