Now I can't even add a new bookmark!

Hi Ron, there may be a problem with your Places database, the file that stores history and bookmarks. I'm not sure this situation can be saved, but here are a couple things to try:

(1) If you haven't since this problem started, Quit Firefox and do a regular shutdown and restart of your Mac to release file locks

(2) If the condition persists after the restart, try the Places database maintenance routine on the Troubleshooting Information page. Either:

• "3-bar" menu button > "?" Help > Troubleshooting Information
• (menu bar) Help > Troubleshooting Information
• type or paste about:support in the address bar and press Return

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

Does yours say that, or something else? You can select and copy the report, and then paste it into a reply for review and comment.

Thanks for the help! More things that don't work: typing urls that used to fill in the bar does not work nor does saving a bookmark!

here is data:

> Task: checkIntegrity - Unable to check places.sqlite integrity: Error: Error(s) encountered during statement execution: database disk image is malformed > Task: invalidateCaches - The task queue was cleared by an error in another task. > Task: checkCoherence - The task queue was cleared by an error in another task. > Task: expire - The task queue was cleared by an error in another task. > Task: originFrecencyStats - The task queue was cleared by an error in another task. > Task: vacuum - The task queue was cleared by an error in another task. > Task: stats - The task queue was cleared by an error in another task. > Task: _refreshUI - The task queue was cleared by an error in another task.

> Task: checkIntegrity - Unable to check places.sqlite integrity: Error: Error(s) encountered during statement execution: database disk image is malformed

This means the database either is corrupted or inaccessible. If restarting your system didn't solve it, unfortunately, I think you would need to restore a backup file from your Time Machine or other backups. That will roll your history back to that time.

There is an article about methods to possibly rescue data from corrupt Places database files, but I haven't tried it myself: https://developer.mozilla.org/docs/Mozilla/Tech/Places/places.sqlite_Database_Troubleshooting

Oh, you might want the file name. See: Fix "The bookmarks and history system will not be functional" error message.

Solved!!!

Thanks,

Ron