Hi,

Seems like your slowness issues may caused by malware. Do a malware check with some malware scanning programs on the Windows computer.
Please scan with all programs because each program detects different malware.
All these programs have free versions.

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

See also:

• "Spyware on Windows": http://kb.mozillazine.org/Popups_not_blocked

All of your bookmarks will be transferred over during the initial launch of Firefox after installation.

Hi Earl, Yes, Firefox is supported on Windows Vista, and it will import everything it can from Chrome.

Thank you - we are both comforted to know we can use FireFox on her machine with the Vista OS. I appreciate the rapid and appropriate response.

Also I appreciate the mention of the possible malware issue. I do subscribe to MalwareBytes and regularly update and scan. It is good to see the mention of other anti-malware.

I consider that this community has solved my issue - thanks. Earl

Just an FYI, Since it sounds like you are trying to make your wife's computer a bit more snappy, make sure you uninstall any programs you don't regularly use, install ALL Windows Updates, Update your graphics Driver Upgrade your graphics drivers to use hardware acceleration and WebGL, and run through some general cleanup.