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Why does WeatherBug not activate on opening Firefox


When I open up Firefox the WeatherBug add on does not activate

Additional System Details

Installed Plug-ins

  • np-mswmp
  • Default Plug-in
  • NPRuntime Script Plug-in Library for Java(TM) Deploy
  • Shockwave Flash 10.1 r82
  • GEPlugin
  • Picasa plugin
  • Next Generation Java Plug-in 1.6.0_21 for Mozilla browsers
  • 4.0.50524.0
  • Google Updater pluginhttp://pack.google.com/
  • Google Update


  • User Agent: Mozilla/5.0 (Windows; U; Windows NT 6.1; en-GB; rv: Gecko/20100722 Firefox/3.6.8

More Information

  • Moderator
1041 solutions 8840 answers

Is it listed in the add-ons manager? If it is, does it have any error message next to it in the add-ons manager?

One possible cause for add-ons not working is one of the files that stores details of installed add-ons is corrupt. Try the following, open the Firefox profile folder, details of how to access this is shown in the Profiles - Where Firefox stores your bookmarks, passwords and other user data article. Once in the profile folder, close Firefox and then delete extensions.cache, extensions.ini, extensions,rdf and compatibility.ini. When you re-start Firefox those files will be re-created and in the process it will re-build the list of installed extensions and themes.