User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.5) Gecko/20031007 Build Identifier: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.5) Gecko/20031007 Many sites that use JS use the non-standard IE property "document.all" - which Moz does not support. While in a perfect world it would be the non-standard browser that should take action, in reality adding document.all (and logging a lot of gripes in the JS console and debugger) would increase the compatibility of Mozilla with existing (bad) practice. Reproducible: Always Steps to Reproduce: 1. Go to http://www.kanroad.org 2. Click on the "Wichita Metro Area" link Actual Results: Errors logged to JS console Expected Results: Shown the map as requested, and logged in the JS console that the site is using a non-standard extension.

*** This bug has been marked as a duplicate of 74201 ***

you can have a look at bug 229877 to see if that patch works for you.