Log Message:
let this use the renderer from "firefox" or "mozilla-gtk2", \ 
depending
on the GECKO_PROVIDER option
update to 1.3.21
changes:
Works with mozilla 1.7 -> 1.7.8, 1.8a3 -> 1.8b2 and trunk
Couple more focus fixes to less common cases
Fix regression since 1.3.19 that prevented helpers from working with
 file:/// urls.
Fix toolbar editor to work when the composite extension is enabled
Other bug fixes