1425963 - SeaMonkey will need to resurrect XUL templates or replace their uses with alternative bits of code

Status: RESOLVED DUPLICATE of bug 1584728

(SeaMonkey :: General, enhancement)

Description

[:Gijs (he/him)]

+++ This bug was initially created as a clone of Bug #1425962 +++

In bug 1425356 and/or deps, we'll remove support for XUL templates which are effectively unused in Firefox.

SeaMonkey (and Thunderbird) still use these, per https://dxr.mozilla.org/comm-central/search?q=%27datasources%3D%27+-path%3Atest&redirect=false .

It's not clear to me off-hand how easy (in terms of time/effort) it would be to replace some of these.

What I *will* say is that from my almost-gone memory of working on CZ, uh, 10 years ago, you might get performance improvements from switching to a JS treeview anyway. See bug 315913. So if time is available, I'd suggest switching the implementation just because it'll make things better.