Separate Issue; Your System Details shows;

Installed Plug-ins

VLC media player Web Plugin 2.1.3 VLC media player Web Plugin 2.1.0

Having more than one version of a program may cause issues.

Problems with bookmarks and history not working properly can be caused by a corrupted places.sqlite database file.

Type about:support in the address bar and press enter.

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

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

Hello and thanks for the reply! :)

How can I remove previous versions of a plugin? It seems to remove them all.

I did as you suggested and removed the file. However, upon restarting Firefox the issue was not resolved.

Make sure to remove all places files including the places.sqlite-shm and places.sqlite-wal files.

You can check for problems with the places.sqlite database file in the Firefox profile folder.

• http://kb.mozillazine.org/Bookmarks_history_and_toolbar_buttons_not_working_-_Firefox
• https://support.mozilla.org/kb/Bookmarks+not+saved#w_fix-the-bookmarks-file

• Places Maintenance: https://addons.mozilla.org/firefox/addon/places-maintenance/

Hello,

I assumed "FredMcD" meant to remove them all and I did just that. All it did was remove the icons of my bookmarks. Still unable to right click and delete them.

I'm looking over the links right now. And in case the image never uploaded—doesn't look like it—I uploaded it again.

Hello,

Update. Read through the links. Followed all the instructions. I got to the suggestions if you find a "corrupt" file. I did find one. However, deleting it as directed and restarted Firefox only respawns the corrupted file.

I tried the extensions to fix the problem, but it didn't solve anything. I noticed that it said CCleaner could be a problem. I have that installed. How can I fix the issue? Is it a setting in CCleaner?

Trying the chkdsk solution now.

Did you try Safe Mode?

Start Firefox in Safe Mode to check if one of the extensions (Firefox/Tools > Add-ons > Extensions) or if hardware acceleration is causing the problem.

• Switch to the DEFAULT theme: Firefox/Tools > Add-ons > Appearance
• Do NOT click the Reset button on the Safe Mode start window

• https://support.mozilla.org/kb/Safe+Mode
• https://support.mozilla.org/kb/Troubleshooting+extensions+and+themes
• https://support.mozilla.org/kb/upgrade-graphics-drivers-use-hardware-acceleration

Twixmonkey said

How can I remove previous versions of a plugin? It seems to remove them all.

Type about:plugins<enter> in the address bar. Now search for the plug-in.

Example; Adobe Acrobat File: nppdf32.dll,nppdf32.dll Path: C:\Program Files (x86)\Adobe\Reader 11.0\Reader\browser\nppdf32.dll,C:\Program Files (x86)\Adobe\Reader 11.0\Reader\AIR\nppdf32.dll Version: 11.0.9.29 State: Enabled Adobe PDF Plug-In For Firefox and Netscape 11.0.9

This will show you the path to that program. Copy the Path Only. Also note the name of the file, and remember it. Now Close Firefox. Open your file browser and paste the path in the address bar. Find the file, and delete it. Now you can restart Firefox. Warning ! Remember to delete the right program.

@cor-el

Safe mode allows me to edit my toolbar. I went through disabling all my plugins afterward, restart Firefox but still cannot edit outside of Safe-Mode.

edit

Okay, it was a Mozilla theme that was causing the problem. I deleted, restarted and everything works fine!

Thanks for the help guys, appreciate it. Didn't want to move browsers or reinstall. :)

@FredMcD

Okay, thank you! I successfully deleted the older version of the player. :)

Delete a possible user.js file and numbered prefs-##.js files and rename (or delete) the prefs.js file to reset all prefs to the default http://kb.mozillazine.org/Preferences_not_saved