Changes
→Check for file version
<code><check type="file" condition="versiongreaterorequal" path="%PROGRAMFILES%\Mozilla Firefox\firefox.exe" value="1.9.0.3224"/></code>
Here are the Gecko versions of some other releases:
2.0.0.17 1.8.20080.17373
2.0.0.18 1.8.20081.2918
3.0.4 1.9.0.3224
3.1b1 1.9.1.3202