> Task: checkIntegrity
+ The places.sqlite database is sane
+ The favicons.sqlite database is sane
> Task: invalidateCaches
+ The caches have been invalidated
> Task: checkCoherence
+ The database is coherent

How long have you had this problem? It could indicate that Firefox doesn't have exclusive access to the Places database that stores bookmarks and browsing/download history. First, if you haven't already, please do a normal shutdown and/or restart of your system. Restarting Windows can help by freeing up locked files, completing any deferred updates, and resolving temporary file permission issues. Next, if Firefox still has bookmark/history problems, could you let us know what you get when you run the "Verify Integrity" diagnosis and repair function. That's here: Open Firefox's Troubleshooting Information page using any of these methods: * "3-bar" menu button > Help > More Troubleshooting Information * (menu bar) Help > More Troubleshooting Information * type or paste '''about:support''' in the address bar and press Enter Near the bottom, there is a section titled '''Places Database''' -- that's the file which stores history and bookmarks. Click the button labeled '''Verify Integrity'''. There may be a 10-15 second delay before results appear. If all is well, the report that appears below the button should start with: > Task: checkIntegrity + The places.sqlite database is sane + The favicons.sqlite database is sane > Task: invalidateCaches + The caches have been invalidated > Task: checkCoherence + The database is coherent Does yours say the databases are sane and coherent, or something else? You can select and copy the report, and then paste it into a reply for review and comment.