Filter Uploader for Adblock Plus (unofficial) Requires Restart
DOES NOT BLOCK ADS! Don't install this add-on if you don't know what 'uploading' means!
This add-on Uploads the filters from your Adblock Plus installation to a FTP, HTTP, HTTPS server...
Quote Colors Requires Restart
Quote Colors allows you to select text and background colors of different quote levels which are applied when reading or printing mail/news messages. Additionally, you can choose between graphical and traditional plain text quoting display mode.
Mouse Gestures Suite Requires Restart
Mouse gestures for SeaMonkey & Firefox: navigate & execute commands using mouse gestures (with single mouse button) and rocker gestures (by pressing 2 mouse buttons). Also: scroll wheel navigation, page scrolling, tab scrolling.
MinimizeToTray Requires Restart
Minimizes Mozilla windows into the system tray. Also includes a right clickable tray icon menu to further load only the windows you want visible...
Focus Regainer Requires Restart
Return focus from embedded object back to browser on browser hotkeys pressed.
OverbiteFF Requires Restart
Quitomzilla Requires Restart
Quitomzilla helps you quit smoking while you surf the web or wait for new emails, showing the cigarettes, money and time you have saved since you quit...
Use SeaMonkey as a standalone e-mail client. Set up a default browser for links opened from Mail & Newsgroups.
ChatZilla Requires Restart
A clean, easy to use and highly extensible Internet Relay Chat (IRC) client.
Lets the user direct the submission of a form to a new tab or window. [Bug #17754]
FoxClocks shows times around the world - or just your local time - at the bottom of your browser. It deals with daylight saving time so you don't have to.
PONG! Multiplayer Requires Restart
Play a game of PONG! while you are waiting.
Focus Regainer Lite Requires Restart
Return focus from embedded object back to browser on browser hotkeys double pressed.
Join-NG Requires Restart
Join partial messages. Somewhat similar to MS Outlook Express "combine and decode".
Reinstates the extensions.checkCompatibility preference.
Copy Sent to Current Requires Restart
Allows to place a copy of sent messages (aka FCC) into the currently active folder or any other folder you choose, when you create the message. Usually the copies are placed into the 'Sent' folder. For replies, you may also move the original message.
InfoLister Requires Restart
Lists installed add-ons (extensions, themes, plugins). Mozilla does not allow me to publish the version compatible with Firefox 48+, see http://forums.mozillazine.org/viewtopic.php?f=48&t=2084957&p=14715558#p14715558 for details.
gContactSync Requires Restart
Synchronizes contacts & groups between Thunderbird or SeaMonkey and Google Contacts. Imports Facebook friends, contacts you follow on Twitter, and more.
Gmail Manager NG Requires Restart
Based on Gmail Manager by Todd Long. This fork is intended to a supported version of Gmail Manager since Todd appears to have gone MIA. Manage multiple Gmail accounts and receive new mail notifications.
Open about:config to change hidden settings that cannot be edited from the Options window. All Mozilla based programs have settings that can not be changed in the options window.