Chrome downloads will not be directly related to use or installation of Firefox (at least assuming it is an official copy of Firefox from a Mozilla site or one of the official mirrors).

I am guessing it is some other software or link that is causing this. Possibly you had a Chrome installer bundled with some other software, and that is now trying to install. The easiest solution may be to allow Chrome to install and then uninstall Chrome.

I believe for example Adobe FlashPlayer may sometimes offer to bundle Chrome with the updgrades to Flash Player.

Try uninstalling the Chrome Toolbar plugin that is installed for Firefox??

Installed Plug-ins

   Shockwave Flash 11.4 r402
   Adobe PDF Plug-In For Firefox and Netscape 10.1.4
   4.1.10329.0
   npprivatepostreader
   npToolbarChrome
   WinZip Courier Plugin for Mozilla Firefox
   Plug-in for detecting Nero Kwik Media.
   Adobe Shockwave for Director Netscape plug-in, version 11.6
   DRM Netscape Network Object
   DRM Store Netscape Plugin
   Npdsplay dll
   Windows Multimedia Services DRM Store Plug-In

I have also experienced this problem on installing firefox on two PC's. How do you remove the plugins please as suggested.

Note that Firefox uses the "chrome://" protocol to access its own internal files and also access files from extensions, so that has nothing to do with Google Chrome.

• https://developer.mozilla.org/en/Chrome

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 or otherwise make changes.

• https://support.mozilla.org/kb/Safe+Mode
• https://support.mozilla.org/kb/Troubleshooting+extensions+and+themes