firefox-beta The most important reason users doesn’t try the latest specially the beta version of Mozilla Firefox is fear of loosing of an important add-on. Because of these non-compatible add-on user is left with only one option that is to downgrade the browser which is also a compromise with security, as newer version have several security and stability updates.

So if you want to use add-ons which are not compatible with the latest version of Mozilla Firefox, you have to install another add-on called Nightly Tester Tool which allows you to use non compatible add-on.

Steps for making Non-Compatible Add-On Work under Latest / Beta Version

Download and Install Nightly Tester Tools
Download Mozilla Firefox 3.6 Beta 4


Open extension dialog box from Tools/Add-ons and right click on extension which is disabled, and choose Override Compatibility.


Click on Force Install Button to install the disabled Add-on.


After force installation restart the browser and enjoy your favorite Add-on


  1. Thanks for the info..I ll keep this is in mind when i face the problem with the addons..
    .-= Rajesh Kanuri´s last blog ..New Colors Added In Orkut Design =-.


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