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I have a basic Google Chrome extension which needs to be ported to Firefox. I uploaded the .crx fil… Read more How To Test Firefox Plugin Locally

I have recently converted a GreaseMonkey script of mine into a WebExtension, just to get a first im… Read more Firefox Webextension: How Do I Run Code Prior To Disable/uninstall?

Reference to the answer for my previous question here. Briefly: When an error occurs in a navigatio… Read more Webnavigation.ondomcontentloaded Url Filter Does Not Match Dns Error Url

Currently I am building a webextension on firefox 47. When you click a webextension button, a drop-… Read more Change The Button Of A Firefox-webextension Into A Textstring

So, I've looked through the WebExtensions API, but I haven't been able to figure out how to… Read more How To Open A Firefox Webextension Options Page As A Tab, Separate From About:addons

I am trying to write a web extension where I need to pass an object from the content script to the … Read more How To Use Cloneinto In A Firefox Web Extension?

I'm experimenting firefox webextensions. I'd like to make HTTP requests using the fetch API… Read more Fetch Api Does Not Work In Webextensions

I am trying to communicate my web page script with my content script of my web extension with the c… Read more TypeError: Browser Is Undefined (Web Extension Messaging)

I have popup in which I need to update the data inside it in reactively. What function or event is … Read more Firefox Extension - OnPopupClose Event?

I'm running web-ext lint and getting back a few errors like this: UNSAFE_VAR_ASSIGNMENT Unsafe… Read more Best Way To Purge InnerHTML From A Firefox Extension