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I've been getting a lot of 403 forbidden error messages lately. I know it is possible to get "useful" error messages instead of the 403 error message in Windows Explorer. So I figure Firefox should be able to do the same. How do you set this up in Firefox?

asked Nov 07 '11 at 01:51

Lestat611's gravatar image


If I recall correctly, this should be an option in the about:config.

  1. Open up a new tab (CTRL+T) or window (CTRL+N).
  2. Type in de addressbar: about:config.
  3. In the filterbar type: error and press enter.
  4. Now set the value of the ‘browser.xul.error_pages.enabled‘ to ‘true‘. Double clicking will do.
  5. Restart Firefox.

This should get you extended warnings instead of the simple warning dialogs.

answered Nov 07 '11 at 15:24

Jeutie's gravatar image


edited Nov 07 '11 at 15:25

'browser.xul.error_pages.enabled' is by default set to 'true'

(Nov 07 '11 at 15:55) Lestat611 Lestat611's gravatar image

Maybe it should be set to false? I do remember that this was the old way of doing it. (If you google it, you'll find such answers too.) But it could be changed in the latest versions of Firefox, I'm using Chrome and Safari nowadays.

(Nov 08 '11 at 05:05) Jeutie Jeutie's gravatar image
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Asked: Nov 07 '11 at 01:51

Seen: 1,162 times

Last updated: Nov 08 '11 at 05:05