The Add-on Compatibility Reporter add-on for the Firefox web browser was a useful browser extension to force add-on compatibility in unsupported versions of the Firefox web browser. While it was not able to force compatibility for add-ons that were incompatible due to changes in the browser itself, it managed to enforce compatibility for the majority of add-ons.
Mozilla with Firefox 10 introduced the compatibility by default feature which enforces compatibility natively for the majority of add-ons.
As a consequence, the compatibility enforcing capabilities have been removed from Add-on Compatibility Reporter. The add-on is now only a reporting tool that provides Mozilla and add-on developers with compatibility information about their add-ons.
Firefox users who have installed the extension solely for the reason of enforcing add-on compatibility, can remove it from the browser as it is no longer offering that functionality.
The compatible by default feature does not enable all add-ons by default. Brian King lists the following exemptions from the rule:
- Add-ons marked to work with a Firefox version less than 4.0
- Add-ons with binary components
- Add-ons explicitly marked by the author as incompatible, i.e. opt-out of Compatible By Default
- Add-ons tested and determined to not be compatible with a given version of Firefox, and marked as incompatible by Mozilla
Most add-ons currently installed in Firefox 10 or higher should be automatically enabled by the new compatible by default feature. Users who are still running pre-Firefox 4 add-ons on the other hand that they now are working in Firefox 10 and higher are left standing in the rain.
One option for them to make their add-ons compatibility would be to install the Nightly Tester Tools to force add-on compatibility. Another option would be to edit the Firefox add-on file directly. Check out Three Methods To Force Add-On Compatibility In Firefox for information on how to do that.
Please note that this affects Thunderbird and SeaMonkey as well.
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Ghacks is a technology news blog that was founded in 2005 by Martin Brinkmann. It has since then become one of the most popular tech news sites on the Internet with five authors and regular contributions from freelance writers.