About this Collection
Add-ons that work on SeaMonkey
42 Add-ons in this Collection
Custom Buttons by Yan, cubegm, others
Gives a possibility to create custom toolbarbuttons...
Important note: This extension will not work in Firefox 57 and above. Providing this functionality in Firefox is no longer possible, the extension is discontinued.
Open in Browser by Rob W, Sylvain Pasche, others
Offers the possibility to display documents in the browser window.
Scriptish by Erik Vold, Nils Maier, others
The greatest user script engine on the Internet (a fork of Greasemonkey).
DOM Inspector is a tool that can be used to inspect and edit the live DOM of any web document or XUL application. The DOM can be navigated using a two-paned window displaying a variety of different views on the document and all nodes within.
Pretty-prints JSON content in the browser for easy, unobtrusive viewing.
Add more items to Add-ons Manager context menu.
Lets the user direct the submission of a form to a new tab or window. [Bug #17754]
KeyManager Tool: Firefox Add-on for Key Generation, Certificate Enrollment, CRL Signing, and Identity and Authority Delegation
XML Digital Signature Tool is a Firefox add-on for processing Digital Signature in XML documents
(Please read the installation instruction in the "Developer Comments" section before downloading)