Test Extension

If you're a Firefox user who has ever had to deal with incompatible extensions after installing an update, Test Extension is the solution you've been waiting for. This handy Firefox extension lets you bypass the browser's extension versioning system and test your favorite extensions while you wait for an official update.

When you install a new version of Firefox, some of your existing extensions may not work if they're not compatible with the updated version. To fix this, Test Extension allows you to alter the "em:maxVersion" information in each extension's "install.rdf" file. You'll be prompted to create a backup of the original content before making any changes.

Once you've made the necessary adjustments, a simple restart of Firefox will allow you to use and test your extension again without any issues. Whether you're a developer working on an extension or just a power user who depends on certain Firefox add-ons, Test Extension gives you the freedom to test and use any extension you want, whenever you want. Try it out and you'll wonder how you ever got by without it.