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Extensions;

AdBlock 3.29.0 (jid1-NIfFY2CA8fy1tg@jetpack) Adblock Plus - free ad blocker 3.5.2 ({d10d0bf8-f5b5-c8b4-a8b2-2b9879e08c5d})

uBlock Origin 1.19.6 (uBlock0@raymondhill.net)

Having more than one program doing the same job could cause issues.

[v57+] Places Maintenance is built into Firefox.

Type about:support<enter> in the address bar.

You will find Places Database near the bottom. Press the Verify Integrity button.

When done, copy and post the results here.

Closing all ad-blockers and U-Blocker has not changed my problem. I still cannot delete bookmarks via Show All Bookmarks or via the star method as the star still does not turn blue when I click on it.

Verify Integrity result-

> Task: checkIntegrity - Unable to check favicons.sqlite integrity: [Exception... "Could not open connection to C:\Users\Ann\AppData\Roaming\Mozilla\Firefox\Profiles\2hnyc92g.default\favicons.sqlite: 2153971713" nsresult: "0x80630001 (NS_ERROR_STORAGE_BUSY)" location: "JS frame :: resource://gre/modules/Sqlite.jsm :: openConnection/</< :: line 985" data: no] > 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

Looks like the file is corrupted or locked by another program.

The places.sqlite file contains your History and Bookmarks.

Type about:support<enter> in the address bar.

Under the page logo on the left side, you will see Application Basics. Under this find Profile Folder. To its right press the button Show Folder. This will open your file browser to the current Firefox profile. Now Close Firefox.

Locate the above file. Then rename or delete it. Restart Firefox.

The browser should then create a new place.sqlite and recover your bookmarks from the backup files. Note: Your history is not backed up and will be lost.

Back up and restore information in Firefox profiles.{web link} I use an add-on that makes backups of my user profile, Just In Case. Unfortunately, it is not compatible with the current Firefox.

Every now and then, open the profile folder and create a copy of the current profile as is to another location on your hard drive. This way you will have a backup.

If you do this each day, you will not lose much data. This should be done with Firefox Closed.

Note: In case you need to restore from these backups, you may need to overwrite old or corrupted files.

It is possible that the bookmark redirects if the star isn't highlighted. A possible cause is a protocol mismatch (http:// instead of https://). You can possibly click the star in offline mode (Web Developer menu).

You can check for problems with the places.sqlite and favicons.sqlite files in the Firefox profile folder.

• use "Verify Integrity" button on the "Help -> Troubleshooting Information" (about:support) page

In case errors are reported with "Verify Integrity" close and restart Firefox and retry.

If "Verify Integrity" cannot repair places.sqlite, rename/remove all places.sqlite and favicons.sqlite files in the Firefox profile folder. Firefox will rebuild places.sqlite and restore the bookmarks from a recent JSON backup in the bookmarkbackups folder.

• keep a backup copy of places.sqlite in case a new places.sqlite database has to be created

See also:

• https://support.mozilla.org/en-US/kb/Bookmarks+not+saved#w_fix-the-bookmarks-file
• https://support.mozilla.org/en-US/kb/fix-bookmarks-and-history-will-not-be-functional