Collections by YFdyh000
WebExtensions for tabs by YFdyh000
Tabs-related enhancement. /firefox/search/?q=tab&tag=firefox57 /firefox/extensions/tabs/?sort=updated&appver=57.0
WebExtensions by YFdyh000
Just collect. Not fully tested. updated: use firefox57 tag to filtering. See also: arewewebextension & arewee10syet website, etc.
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