Main SeaMonkey 2.0 Improvements:
-The Password Manager, Cookie Manager, Form Managers have been improved and a new download manager has been added, which supports cross-session resumable downloads, as you can see in the photo.
-Support for Windows 95, 98, Me and NT 4 was dropped. GTK 2.10 or higher is now required on Linux/UNIX. Support for Mac OS X 10.3 ("Panther") and 10.2 ("Jaguar") was also dropped, according to SeaMonkey 2.0 release notes.
-Session restore (crash recovery) has been added, so, when SeaMonkey crashes, all your browser windows and tabs will be restored automatically or on request. Also, users can select to always restore the browser windows and tabs from their last open session when starting SeaMonkey.
-Extensions installed under SeaMonkey 1.x are not migrated to SeaMonkey 2, and may not be compatible for reinstalling in this version due to major changes in our architecture. Extensions and Themes for SeaMonkey 2.0 can be installed from the SeaMonkey Add-Ons website or the "Get Add-Ons" section in the Add-Ons manager.
Poorly designed or incompatible extensions can cause problems with SeaMonkey, according to its website, including make it crash, slow down page display. When encountering strange problems relating to parts of SeaMonkey no longer working, the browser not starting, windows with strange or distorted appearance, degraded performance, you should restart SeaMonkey in Safe Mode.
On Windows, start using the "Safe Mode" shortcut created in your Start menu or by running seamonkey.exe -safe-mode.
On Linux, start with:
and on Mac OS X, run:
cd /Applications/SeaMonkey.app/Contents/MacOS/ ./seamonkey-bin -safe-mode
When started in Safe Mode all extensions are disabled and the Default theme is used. Disable the Extension/Theme that is causing trouble and then start normally.
Download SeaMonkey 2.0.