Strange firefox bug

Question

whenever i type any address and click go, it gives some strange error.

for example , when i type "www.google.com" it freezes for sometime and gives me error as follow:

File Not Found

Firefox can't find the file at jar:file:///C:/Program Files/Mozilla Firefox/chrome/en-US.jar!/locale/browser-region/region.propertieswww.google.com

• Could the item have been renamed, removed, or relocated?
• Is there a spelling, capitalization, or other typographical error in the address?
• Do you have sufficient access permissions to the requested item?

so can't open any site in firefox , can anyone tell me whats the problem

this problem has been observed by all the firefox versions installed in my pc i.e. 3.0.11, 3.5 and 3.5.1

edited after 1st 2 answers:

there is one more problem of freezing. whenever i click on any link or click any button in browser it freezes for atleast 15 seconds.

Answer 1

I think the interesting part of this error is that he's typing in a web address and Firefox is prepending

file:///C:/Program Files/Mozilla Firefox/chrome/en-US.jar!/locale/browser-region/region.properties

to the address. If the above solutions don't fix the issue I would completely remove FF, delete the folder under Program Files to be sure and reinstall.

Answer 2

Try disabling all of your add-ons. (Like the Ask toolbar.) Then restart the browser and see if the problem still exists. I've noticed sometimes that firefox won't load a web page for me, but when I disable the StumbleUpon toolbar, it works just fine.

Answer 3

This thread suggests the problem might be with Ask.com toolbar add-on which apparently can come when you install the COMODO firewall

Answer 4

Do you have the Ask toolbar installed?
If so, retry after removing it.

In some cases, you may also need to reset preference settings related to the toolbar after disabling or uninstalling it.

In particular, toolbars that include an Internet search feature (such as the Ask.com Toolbar) change the default search provider by modifying the Keyword.URL preference.

Answer 5

I get a similar problem when using certain proxies. It freezes and will sometimes come up after a short-ish wait. Then pages seem to load a lot quicker.

I would try resetting Firefox to its default configuration (i.e. no proxies, no extensions, security at default levels). I realize though that you've tried this with several versions. Maybe each time you're importing the proxy settings from IE?

Maybe something has changed on the proxy end of things?