Usually, uninstalling and reinstalling Firefox does not help solve this kind of problem. But if you want to try, here is one method, and I'll put other suggestions in a second post:

"Clean reinstall" procedure

(1) Download a full installer for Firefox 33 from https://www.mozilla.org/firefox/all/ to a convenient location. (Scroll down to your preferred language.)

(2) Exit Firefox or close all open Firefox windows

(3) Rename the Mozilla Firefox program folder

64-bit Windows:

C:\Program Files (x86)\Mozilla Firefox

to

C:\Program Files (x86)\OldFirefox

32-bit Windows:

C:\Program Files\Mozilla Firefox

to

C:\Program Files\OldFirefox

(4) Run the installer you downloaded in #1. It should automatically connect to your existing settings.

Any improvement?

Note: Some plugins may exist only in that OldFirefox folder. If something essential is missing, look in these folders:

• OldFirefox\Plugins
• OldFirefox\browser\plugins

Bad redirects can result from a variety of causes, including (1) system level malware, (2) system level settings changes, (3) bad Firefox add-on, (4) Firefox settings changes, (5) other (depending on the nature of the redirect).

Here's what I suggest for tracking it down:

(1) Open the Windows Control Panel, Uninstall a Program. After the list loads, click the "Installed on" column heading to group the infections, I mean, additions, by date. This can help in smoking out undisclosed bundle items that snuck in with some software you agreed to install. Take out as much trash as possible here.

(2) Then, in Firefox, open the Add-ons page using either:

• Ctrl+Shift+a
• "3-bar" menu button (or Tools menu) > Add-ons

In the left column, click Plugins. Set nonessential and unrecognized plugins to "Never Activate".

In the left column, click Extensions. Then, if in doubt, disable (or Remove, if possible) unrecognized and unwanted extensions.

Often a link will appear above at least one disabled extension to restart Firefox. You can complete your work on the tab and click one of the links as the last step.

(3) Check your Firefox connection setting in the Options dialog here:

"3-bar" menu button (or Tools menu) > Options > Advanced > Network mini-tab > "Settings" button

The default of "Use system proxy settings" should piggyback on your Windows/IE "LAN" connection settings, but you also can try "No Proxy" to see whether that works better.

(4) Search for remaining issues with the scanning/cleaning tools listed in our support article: Troubleshoot Firefox issues caused by malware.

Are you able to get rid of the unwanted redirect?