February 21st, 2013
· Fixed a rare problem where disabling Masking Agent had no noticeable effect.
· Users who still experience problems after installing Masking Agent version 1.3.0: please visit my Support page or contact me via my Contact page, for a simple fix.
September 5th, 2012
· Changed support for empty replacement text preference.
· Added warning about unique User-Agents to preferences text.
· Added info about the default value to the preferences text.
· Migrated implementation of preferences observer from deprecated nsIPrefBranch2 to nsIPrefBranch, thus requiring Firefox 13.0 or higher.