Extensions by Name


SeaFind - Findbar for SeaMonkey

Adds the find in page toolbar (findbar) from Firefox to SeaMonkey.

Rated 5 out of 5 stars (1)
2 users

SeaMonkey Debug and QA UI

Provides Additional Debug and QA UI for SeaMonkey development and testing.

Rated 5 out of 5 stars (1)
495 users

SeaMonkey Update Server Cert HotFix

Adds the current Certificate used by the Official Update Server to SeaMonkey's acceptable list.

Not yet rated
42 users

Search Engine Quick Switcher No Restart

Switch the current search engine on the fly! Press Control + Shift + Down Arrow to switch to the next search engine or Control + Shift + Up Arrow to select the previous one.

Rated 3 out of 5 stars (2)
17 users

Search YouTube For This

Right click on selected or a link click search YouTube For Video of in the menu, a new tab will open with the searched text.

Rated 5 out of 5 stars (1)
259 users


Adds Firefox-style tab closers into SeaMonkey.

Rated 5 out of 5 stars (16)
2,115 users

Select like a Boss No Restart

Select link's text just like a regular text (like in Opera'12 browser) - Select like a Boss ;)

Rated 5 out of 5 stars (27)
2,550 users

Select Search Shop No Restart

Select Search Shop : select text and Search in different shops.
1. Select: Select product name/text
2. Search: Click on right click and search in different top shops.
3. Shop: Shop/Buy the product.
4. Get products at low price & Save Money.

Not yet rated
4 users

Send Filter

This add-on allows you run your message filters automatically on outgoing messages after sending. In other words, it's a outgoing filter for thunderbird and seamonkey.

Rated 4 out of 5 stars (38)
5,213 users

Send Later

True "Send Later" functionality to schedule the time for sending an email.

Rated 5 out of 5 stars (39)
57,157 users

Sensitivity Header

Implement the "Sensitivity" header for outgoing messages (described in RFC 4021 section 2.1.55).
This allows the user to select Private / Personal / Company-Confidential (or none) for an outgoing message.

Not yet rated
15 users


A general-purpose JavaScript console for all Mozilla toolkit applications.

Not yet rated
5 users

sepsis-console (Deprecated)

THIS VERSION IS DEPRECATED. Use https://addons.mozilla.org/en-US/developers/addon/sepsis-console instead. See the description below.

sepsis-console is a general-purpose JavaScript console for all Mozilla toolkit applications.

Not yet rated
4 users

Serenatas For You No Restart

En 4 pasos envía la serenata, sencillo, seguro y rápido.

Rated 5 out of 5 stars (1)
6 users

Session Manager No Restart

Session Manager saves and restores the state of all or some windows - either when you want it or automatically at startup and after crashes. It can also automatically save the state of open windows individually.

Rated 4 out of 5 stars (567)
283,441 users

Share Button for Pinterest No Restart

Send images and pages to your Pinterest account quickly and easily with Share Button for Pinterest.

Rated 5 out of 5 stars (11)
76,458 users

Share to Google+ Page

Share to your Google+ Profile or Google+ Page with just click of a button.

Not yet rated
43 users

Sharp Color Picker No Restart

A full featured color selector tool, to work with colors, and easily find the colors you want.

Not yet rated
1,723 users

Shift+LeftClick XUL

This simple addon has only this functionality, nothing else: it opens links in a new active tab with Shift+LeftClick (left mouse button click).
Better use https://addons.mozilla.org/ru/firefox/addon/shiftleftclick-opens-links-in-/ for FireFox.

Not yet rated
2 users

Shop Companion No Restart

Access to full-resolution product images and videos on various shopping sites is easy with this add-on. It adds links to the largest/xxl/best-size version of product images on various shoppings sites.

Open-source code on github.com/ShopCompanion

Not yet rated
66 users