Refresh All Tabs via url by cwm9

This simple add-on forces every page in the browser to refresh if you visit the page about:refresh-all-tabs

It is intended to for use after making a modification to Firefox Group Policy that restricts or permits access to websites.

After making a change to web site restrictions via GPO, administrators can remotely refresh all tabs in the browser by executing:

"C:\Program Files\Mozilla Firefox\firefox.exe" -new-tab "about:refresh-all-tabs"