https://bugzilla.mozilla.org/show_bug.cgi?id=1292481
https://edmullen.net/mozilla/moz_sidebar.php — the comprehensive page SeaMonkey links to now. It also links in the footer:
- Bill Thomas’ Corvar (archive.org) — Perl scripts for panelizing
- Isaac Schemm’s sidebars collection
- Rijk’s panelizer
The bugzilla ticket also links:
- https://vangeijt.home.xs4all.nl/panels/panelizer.html — a perhaps less up-to-date (or just different, or perhaps the opposite) mirror of Rijk’s panelizer
- a blog post in German listing some cool names of panels that no longer work