Yes, but many of us don't want to upgrade yet due to many extensions not working. So I need to keep the old version of colorful tabs with V56 of Firefox. The extension keeps updating itself and has grey tabs. How do I stop the upgrade and keep it at v31?
You have caused a problem with forcing the upgrade.
Additionally, I tried it with 57 on a different PC. It causes the Firefox Menu bar to have fuzzy and unreadable characters.