They didn't just broke them by necessity of rewriting the browser, though – they then actively blocked them on regular browser versions (non-Nightly/Developer E

They didn't just broke them by necessity of rewriting the browser, though – they then actively blocked them on regular browser versions (non-Nightly/Developer Edition/etc.). Case in point: With some limited maintenance and a compatibility shim for loading them, a number of old add-ons are still working on current Firefox versions: https://github.com/xiaoxiaoflood/firefox-scripts/tree/master/extensions https://github.com/xiaoxiaoflood/firefox-scripts/tree/master...