Rated 5 out of 5 stars

le Elias Andrade ar Meith. 2, 2011 · buan-nasc

To running under 4.0.X Firefox version you can unzip the .xpi file and change the file install.rdf.
Example to running under Firefox 4.0.1:

- Download asterisk_click2dial_extension-1.5.1-fx.xpi;
- unzip asterisk_click2dial_extension-1.5.1-fx.xpi
- Change install.rdf in line "em:maxVersion=" to "em:maxVersion="4.0.*" ;
- zip the files (ex: zip asterisk_click2dial_extension-1.5.1-fx.xpi *);
- Install manually the Extension;