User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; rv:1.7.3) Gecko/20041001 Firefox/0.10.1 Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.1; rv:1.7.3) Gecko/20041001 Firefox/0.10.1 Make an option so we can Disable warning mesages that apear during browsing when webpages are not find or opened. Mesages like this that apear very often: "Could'nt contact www.... address." "The operation timed out when attempting to conect www...." "The www.... could not be found please check the name and try again" "This document contains no data" This kind of messages should be turned off. Reproducible: Always Steps to Reproduce: 1. Open many webpages at the same time on a low internet conection 2. The webpages that could'nt be opened display warning mesages Actual Results: Too many warning messages apear durring browsing. Expected Results: This kind of messages are very anoyng and should be turned off. This kind of mesages are very anoyng and should be turned off.

works if you use the pref browser.xul.error_pages.enabled set as true (use about:config) *** This bug has been marked as a duplicate of 216466 ***

But keep in mind: Note that this feature is still a bit buggy as it removes the last visited page from the Back button history.