After the Deadline Firefox Add-on - README

After the Deadline is an open source software service that checks spelling, style, and grammar. This directory houses the development of a Firefox add-on which enables After the Deadline in forms and documents across the web. The add-on itself is downloadable from addons.mozilla.org.

At this time no clean install script has been made, but here are the manual installation steps:

Locate your profile folder and beneath it the profile you want to work with (e.g. Firefox/Profiles/<profile_id>.default/).
Open the extensions/ folder, creating it if need be.
Create a new text file in the extensions directory called afterthedeadline@afterthedeadline.com. In the file, put the full path to your development folder inside (e.g. C:\atd_firefox\trunk\ or ~/atd_firefox/trunk/). Windows users should retain the OS' slash direction, and everyone should remember to include a closing slash and remove any trailing spaces.
Restart Firefox. After the Deadline should show up in the list of active add-ons.

This addon is distributed via addons.mozilla.org. The following steps are used to package and distribute a new version of AtD:

Make sure the version information is updated in install.rdf and update information is added to the changelog.
cd trunk
zip -r ../xpi/atd-firefox-VERSION.xpi * -x \*/.\* where VERSION is the new version number. The exclude flag is used to keep cruft like .svn out.
Add and commit the new xpi file to SVN for posterity.
(optional) You may want to set the svn:mime-type flag to application/x-xpinstall so it's installable right from the SVN server.
Login to addons.mozilla.org and upload the new xpi. Copy changelog information into the release notes.

Uses AtD Core by Raphael Mudge, Automattic
getContainingBlockOffset() function adapted from It's All Text! addon Copyright © 2006-2007 Christian Höltje, used via GPL licensing

The AtD Firefox add-on is licensed under GPL version 2 or greater.