JavaScript Lib

Anyone, help me, how to get Headers and PostData inside extension, using xpcom/something else? i ca… Read more Get Postdata As In Firebug

I am feeling overwhelmed by so many different approaches, guides, and yet none I tried work for me.… Read more Firefox Webextension Importing Services

I am working on creating a Firefox Add-on SDK extension that would set custom cookies (two cookies … Read more How To Set Custom Cookies Using Firefox Add-on Sdk (using Services From Firefox Add-on Sdk)

This is the code I am using. (code is at way bottom of this post but here is link to GitHubGist :: … Read more Issue With Reduced Quality On File After Saving/converting From Canvas

This is the first time I'm writing a Firefox addon. For the addon I'm trying to write, I ne… Read more Is It Possible To Use Nodejs Modules Like "oauth" In My Firefox Addon?

I have converted some Chrome extensions to firefox .xpi and installed them in FF. They show up in … Read more Trigger Firefox Extensions From A Custom Button

I am currently creating a WebExtension in which I register a listener on the web requests being mad… Read more Update Webextension Webrequest.onbeforerequest Listener Url Settings From Separate Script

Been trying to get the following code to work in firefox add-on: var oMyForm = new FormData(); oMy… Read more Use Blob On Firefox Add-on

Possible Duplicate: Firefox extension: check if window is minimized I've written a Firefox ex… Read more Browser Window Minimize/maximize Event

Using the following example, I can get First paragraph from one URL i.e, ContentURL. ex - http://ww… Read more How To Load Multiple Urls In Pageworker For Firefox Add-on Sdk?

I need it for my firefox extension. I don't care about waiting the page load completely, I want… Read more A Way To Observe Url In Urlbar Of Firefox, And Get An Event Every Time It Changes

I'm implementing a Firefox plugin. In the plugin's toolbar, I capture the current page and… Read more Why Is This Javascript Page Redirect So Slow?

I'm a newbie trying to do a simple HTTP post in JS within a Firefox extension.. This isn't … Read more Http Post In Javascript In Firefox Extension

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 made a simple temporary addon: manifest.json { 'manifest_version': 2, 'name'… Read more Content Script Only Runs Once (temporary Addon)

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

I'm quite new to addon development with firefox. I picked the addon sdk for porting my chrome e… Read more Firefox Addon Sdk: Ways To Display Options To User?

Once the require('sdk/panel').Panel code is enabled, I cannot find the addone button, even … Read more Why The Addone Button Is Lost When I Enable Panel Code?

I'm trying to build an addon for LinkedIn but the contentscript is outputted in every frame... … Read more Firefox Addon Ignore Iframes

Say a webpage has a function like: function abc (){ return 'abc'; } How would I execute an… Read more Execute Function On Webpage?