uBlock/platform/firefox/install.rdf

<?xml version="1.0" encoding="utf-8"?>
<r:RDF xmlns:r="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns="http://www.mozilla.org/2004/em-rdf#">
    <r:Description about="urn:mozilla:install-manifest">
        <id>{{2b10c1c8-a11f-4bad-fe9c-1c11e82cac42}}</id>
        <version>{version}</version>
        <name>{name}</name>
        <description>{description}</description>
        <homepageURL>{homepage}</homepageURL>
        <creator>{author}</creator>
        <type>2</type>
        <bootstrap>true</bootstrap>
        <multiprocessCompatible>true</multiprocessCompatible>
        <optionsType>3</optionsType>
        <optionsURL>chrome://ublock/content/dashboard.html</optionsURL>
{localized}

        <!-- Firefox -->
        <targetApplication>
            <r:Description>
                <id>{{ec8030f7-c20a-464f-9b0e-13a3a9e97384}}</id>
                <minVersion>24.0</minVersion>
                <maxVersion>39.0</maxVersion>
            </r:Description>
        </targetApplication>

        <!-- SeaMonkey -->
        <targetApplication>
            <r:Description>
                <id>{{92650c4d-4b8e-4d2a-b7eb-24ecf4f6b63a}}</id>
                <minVersion>2.21</minVersion>
                <maxVersion>2.36</maxVersion>
            </r:Description>
        </targetApplication>

        <!-- Thunderbird
        <targetApplication>
            <r:Description>
                <id>{{3550f703-e582-4d05-9a08-453d09bdfdc6}}</id>
                <minVersion>24.0</minVersion>
                <maxVersion>39.0</maxVersion>
            </r:Description>
        </targetApplication> -->
    </r:Description>
</r:RDF>