Add-ons

Disable Add-on Compatibility Checks by Kris Maglione

Reinstates the extensions.checkCompatibility preference without respect to the current application version.

Forecastfox Weather by Ensolis

Get international weather forecasts from AccuWeather.com and display them in any toolbar or statusbar with this highly customizable and unobtrusive extension.

Google Docs Viewer (PDF, DOCX, PPTX, XLSX, etc...) by Adon

View publicly-accessible PDF, DOCX, PPTX, XLSX, among other files online with Google Docs by only 2 clicks. Click as usual for your default viewer. Support bookmarked URLs. Security and your explicit viewing intention are always honored.

GProxy Tool by Ultra-GM

GProxy lets you set and clear GPass local proxy in Firefox and Thunderbird, and do more.

Copy As Plain Text by mehtuus

Removes formatting from copied text.

IE Tab V2 by Paulo

Ported version of IE Tab V2 (Enhanced IE Tab) that is compatible with SeaMonkey 2. Based on IETab.net work.

Really Red by SynGamer