This project aims to make the original Tab Kit(TK) Pale Moon compatible.
Since Firefox 57+ only supports their new kind of extension ("WebExtensions"), supporting it would require a complete rewrite.
With the time (I got a day job) and the knowledge (WebExtensions is completely different in code layout, functionality support) I have,
I decide to switch to support Pale Moon. It supports XUL extensions (the "old" extension type) like DownThemAll forever.
You have several altermatives here:
I am using Pale Moon + Vivaldi myself.
Tab Kit makes tabs more efficient for power users, allowing a wide variety of tweaks, all of which are optional, notably:
Some features are extracted into other extensions (which can be used separately):
Install Tab Kit - Tab Highlighter
See https://github.com/tabkit/tabkit2/blob/master/CHANGELOG.md
Since we are on GitHub
Just fork, change and send pull request
I will check frequently (since I also use GitHub at work)
Tab Kit 2
Copyright (c) 2011-2017 Leung Ho Kuen pikachuexe@gmail.com
This file is part of Tab Kit 2. Tab Kit is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version.
Tab Kit 2 is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.