From Opera 15 onward, Opera 11 & 12’s extension format is no longer supported, and instead, we’ve switched to Chromium’s extension model. Check out our new documentation for developing extensions for Opera 15 and higher and start building your own extensions.
<description> provides a description of what the extension is supposed to do.
<?xml version="1.0" encoding="utf-8"?> <widget xmlns="http://www.w3.org/ns/widgets" id="http://example.com/myExtension" version="1.0"> ... <description>Make every page you visit look 10x cooler!</description> ... </widget>
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