Stylish 3.0.1 — For Firefox 57 or later

Click to install (Firefox will block unless you grant permission) or right-click > Save Link As to download:

Stylish for Firefox 3.0.1 (Nov. 10, 2017): {46551EC9-40F0-4e47-8E18-8E5CF550CFB8}.xpi

Redistributed under GPL-3.0 without warranty or endorsement.

Help for migrating user styles (themes) from Stylish 3.0.1 or later to Stylus: Stylish to Stylus Migration (How To / Help) on Mozilla Discourse.

Go to Version 2.1.1