Did you try to remove this bookmark and create a new bookmark?

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

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/

I just tried removing the bookmark. It seems that, even when I just type in www.yahoo.com that it ALSO redirects to Facebook. I am perplexed by this conundrum.

Also, when I click a link for Yahoo, it too takes me to Facebook instead.

Your issue may be caused by Malware. You can run and update the following free anti virus software:

1. Malwarebytes (Free version) - http://www.malwarebytes.org

2. Spybot Search & Destroy - http://www.safer-networking.org

3.Spyware Terminator - http://www.spywareterminator.com

In addition, there are a number of forums you can use to help get rid of your infection. These include:

• http://www.bleepingcomputer.com/forums/

• http://forums.spybot.info/

• http://www.spywarewarrior.com/index.php

Make sure that you update each program to get the latest version of their databases before doing a scan.

• Malwarebytes' Anti-Malware:

http://www.malwarebytes.org/mbam.php

• AdwCleaner:

http://www.bleepingcomputer.com/download/adwcleaner/ http://www.softpedia.com/get/Antivirus/Removal-Tools/AdwCleaner.shtml

• SuperAntispyware:

http://www.superantispyware.com/

• Microsoft Safety Scanner:

http://www.microsoft.com/security/scanner/en-us/default.aspx

• Windows Defender: Home Page:

http://www.microsoft.com/windows/products/winfamily/defender/default.mspx

• Spybot Search & Destroy:

http://www.safer-networking.org/en/index.html

• Kasperky Free Security Scan:

http://www.kaspersky.com/security-scan

You can also do a check for a rootkit infection with TDSSKiller.

• Anti-rootkit utility TDSSKiller:

http://support.kaspersky.com/5350?el=88446

• Troubleshoot Firefox issues caused by malware

I don't believe it is Malware at this point.

I ran Malware Bytes and, while it did find quite a few files, it didn't do much after I purged what it found.

It may not help with your immediate problem but your Mindspark toolbar plug-in is a known problem. Search the Search box above or Google for information and advice.

Do you still have your problem?