Was all very happy with my Firefox 3 upgrade, and had also installed Mozbackup to make sure I retained my bookmarks from the previous version.
But as days went on I slowly realized something was wrong. My bookmarks were not saving.
Oh they’d still go to the bookmarks dropdown, viewable when I check right after I bookmark them, but after I’ve closed Firefox and reopened the browser, the new bookmarks were gone, just like I never put them there.
Enter Google the almighty. I entered “bookmarks do not save firefox 3” and tried suggested solutions such as making sure that the places.sqlite file which you can find in %APPDATA%\Mozilla\Firefox\Profiles\ is not marked as readonly on your Windows machine. But all files stated were not readonly and this solution did not work for me.
Then I found this link to Mozillazine. It reminded me of something I hadn’t touched since upgrading to Firefox 3 — about.config.
Typing about:config (thank you Alex for the sharp eyes) into the address bar in Firefox brings up its configuration window, pretty much like Windows regedit, only for Firefox. From there I typed “browser.places” (without the quotes) in the filter bar. The result looked like this:
Now I did what the Mozillazine article instructed and right clicked on each result. From the flyout I selected “Reset”. Did that right down the list of four results.
Then I closed about:config and tried to save a bookmark again. Sure enough, it was saved where I put it, and when I restarted Firefox the bookmark was still there.