Problems with Fedora, Firefox and Tycho!

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Fedora 9 with Firefox 3.0.4

Problem: Tycho reports that it needs Javascipt 1.5 and will not show the left side menu.


  1. In Firefox, enter URL: "about:config"
  2. CAUTION: You now have direct access to the Firefox configuration file. It is probably very easy to change values here that would really mess up Firefox.
  3. Find "general.useragent.vendor" key. Default is "Fedora"
  4. Right-click on line and delete the value in the entry, leaving the field blank.
  5. I also deleted the "general.useragent.vendorSub" key.
  6. Restart Firefox

Nicholas Duchon
December 13, 2008