JavaScript Guy

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 have a simple extension where I use Cu.import to import a JavaScript code module. But, when I loa… Read more Unable To Use Components In Webextensions: Get "referenceerror: Cu Is Not Defined"

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

I am porting my Chrome extension over to Firefox. It has a paste to clipboard function. But, I have… Read more Copy Text To Clipboard From Background Script In A Firefox Webextension

I am trying to override the built in method CanvasRenderingContext2D.getImageData(). I would like t… Read more Overriding Canvasrenderingcontext2d.getimagedata()

I am trying to develop a Firefox extension which involves copying an image to the clipboard. In the… Read more Firefox Webextension Alternative To Addon Clipboard Sdk For Copying Images

I have a WebExtension with the following structure: webextension [directory] - background.js … Read more Messages Intended For One Script In The Background Context Are Received By All

Testpage: https://www.google.com It works in Chrome but in Firefox Nightly 52.0a1 it gives me this … Read more How To Copy To Clipboard Via Chrome.notification.create With Chrome.notification.onclicked In A Firefox Webextension Add-on?

I've been writing some browser extensions in the last few weeks and until today I thought that … Read more Promise Support For Chrome Extensions Api?

I try to migrate my firefox addon wich use low level SDK API to WebExtension and at some point I wa… Read more Open A Tab And Make A Post Request To It In A Firefox Webextension

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

Let's say we have a background script which communicates with the browser action popup. Under c… Read more Catch If Runtime.sendMessage Doesn't Receive Response

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

I would like to get the URL of the current tab within a page action popup. At first it seems obviou… Read more Get Tab URL From Page Action (WebExtensions, Android)