All-In-One PageSpeed Test – Get this Extension for 🦊 Firefox (en-US)

Download All-In-One PageSpeed Test for Firefox. Test any website performance with main test tools with one single click: Google PageTest Insights, GTmetrix, Yellow Lab Tools

Ai Chat everywhere – Get this Extension for 🦊 Firefox (en-US)

SpeedVitals – Get this Extension for 🦊 Firefox (en-US)

WebPG for Mozilla :: Add-ons for Thunderbird

SingleFile – Get this Extension for 🦊 Firefox (en-US)

SEO Analysis & Website Review by WooRank – Get this Extension for 🦊 Firefox (en-US)

Mangools SEO extension – Get this Extension for 🦊 Firefox (en-US)

SEO Tool Extension – Get this Extension for 🦊 Firefox (en-US)

Hydrator – Get this Extension for 🦊 Firefox (en-US)

I can't install any add-ons from the store, Firefox Support Forum

Firefox - Progress Test Studio

WebExtension X-Ray – Get this Extension for 🦊 Firefox (en-US)

Mangools SEO extension – Get this Extension for 🦊 Firefox (en-US)