Extension prioritization may be provided. Upon opening a document in a software application, a determination may be made whether the document satisfies a respective activation rule for each of a plurality of application extensions associated with the software application. In response to determining that the document satisfies a respective activation rule for each of a plurality of application extensions associated with the software application a priority may be identified for each of the plurality of application extensions and a user interface element associated with at least one of the plurality of application extensions may be displayed.