Rated 3 out of 5 stars

This is somewhat useful, but it doesn't clear out all the cache files on a restart. Instead of removing the compreg.dat and xpti.dat files, simply replace all that code with the following two lines will re-register all components and remove fast-load data:

let XRE = Components.classes["@mozilla.org/xre/app-info;1"].getService(Components.interfaces.nsIXULRuntime);

See https://developer.mozilla.org/en/XPCOM_Interface_Reference/nsIXULRuntime#invalidateCachesOnRestart%28%29

This review is for a previous version of the add-on (0.03). 

Hi Morac,
Thanks for the tip. I will add this change to next release of this addon.