Work on Firefox 3 compatibility

Topics Firefox on December 14th, 2007

Mozilla wants addon developers to start updating their themes and extensions for Firefox 3. Lack of addon compatibility is a frequent complaint immediately following major Firefox updates because many users depend on the additional functionality that they get from third-party components. Mozilla hopes that developers will start resolving compatibility issues now so that a robust assortment of popular addons will be available in time for the Firefox 3 launch.

An announcement posted in the Mozilla Developer Center urges developers to get started and provides important information about changes in the addon versioning system. Version numbers in Firefox 2 are composed of four individual numbers separated by dots (the current version is 2.0.0.11). In Firefox 3, the versioning will only use three numbers, and extension install.rdf files will have to be written accordingly. Extensions that are hosted somewhere other than addons.mozilla.org will also now require a secure update channel to protect against man-in-the-middle attacks.

For additional information about updating addons for Firefox 3, see the documentation in the Mozilla Developer Center.

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