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

for example , when i type "" 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/

  • 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.

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After removing ask toolbar and disabling all add-ons i can now open sites in browser but "15 sec freezing after every click in the browser" seems to frustrate me. – jack.spicer Aug 18 '09 at 10:37
Nice question title "strage firefox bug" - very detailed, probably this is why I would prefer to do house-laundry than doing technical support. – sorin May 6 '10 at 19:39
up vote 3 down vote accepted

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/

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.

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thnx it worked. – jack.spicer Aug 19 '09 at 6:17

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.

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or, run firefox in "safe mode" which disables all addons.. – Jeff Atwood Aug 18 '09 at 11:38

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

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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 Toolbar) change the default search provider by modifying the Keyword.URL preference.

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removed ask toolbar.........but the freezing problem still persists... – jack.spicer Aug 18 '09 at 10:16

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?

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yes i have been using proxies over long period of time but firefox has started behaving this way recently. but i agree that proxy has something to do in this matter – jack.spicer Aug 18 '09 at 11:01

i face similar problem like whenever i use ctrl+enter to complete url i get this error: Firefox can't find the file at jar:file:///C:/Program Files/Mozilla Firefox/chrome/en-US.jar!/locale/browser-region/

any help?

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