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TextZoom
TextZoom - Firefox add-on that allows you to override default text-zoom....
Modify Headers
A Firefox add-on that allows you to modify HTTP request header...
Modify Date Received
Modify Date Received - Change the date of a received message...
Modify Headers for SeaMonkey
A SeaMonkey add-on that adds, modifies and filters HTTP request headers...
Modify Video - Text And Music
It lets you replace a video clip's original audio and add text to it....
Content Preferences
Firefox add-on that adds Content Preferences sidebar in your browser....
display widget modify Pagestyle TextZoom Content Preferences sidebar