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I'm writing through a socket from a FF add-on to a java server. I write several requests and th… Read more How To Flush A Socket In My Code

I need synchronous notifications of DOM changes a la MutationEvents for an extension capability. M… Read more Alternative To Mutationobserver For Synchronous Notifications

How to connect to a port from javascript in firefox extensions? I could able to open the port and l… Read more Is There Nsiclientsocket In Firefox Extension Javascript?

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 able to grab the URL of an image on a website, but I want to download the image to the local d… Read more Save Website Image Using A Firefox Addon (sdk)

hi im pretty much a beginner.I need some help turning this script in an browser extension for firef… Read more Convert Javascript Into Firefox Extension

I have the following scenario: A user can paste html content in a wysiwyg editor. When that pasted … Read more How To Find Specific Cache Entries In Firefox And Turn Them Into A File Or Blob Object?

I'm trying to add a context menu to a widget This is the menu: var widgets = require('sdk/w… Read more Can I Add A Context Menu To A Widget?

Alone, this code works: CustomButton = { 1: function () { alert('Just testing') }, }… Read more I Add 10 Functions To A Code, I Don't Even Call Any Of Them, But The Code Stops Working!

I am making a short research about Chrome and Firefox extensions. I can access the manifest.json fi… Read more How To Access The Manifest.json File Of A Firefox Extension?

I've been trying to add the highlighting feature to the Firefox DevTools debugger, so it will h… Read more How Do I Get Firefox Debugger Watch's Target Element?

I'm creating (developing) a Firefox add-on and I need to find browser's user agent. The nav… Read more How To Find Out Browser's User Agent In Firefox Add On

I have a very simple webextension that is supposed to open a local page in a new window when a butt… Read more Javascript Does Not Run On Local Page

I'm working on a Mozilla Add-on SDK extension that provides a right-click context menu option u… Read more Add Menu Item Created With The Sdk/context-menu Api To The Top Of The Context Menu

Is it possible to use Text Input Processor on a specific Tab of a Firefox window? Do all the tabs s… Read more Get Nsidomwindow Of A Tab To Do Text Input

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

I am writing a plugin which tries to display the meaning of a selected word in firefox browser. How… Read more Retrieving A Word That Is Selected

I submitted my addon to the AMO direcotry and the editor came back with this: There are still a num… Read more Javascript: Variables Being Leaked Into The Global Scope (firefox Addon)

I have a problem understanding the documentation for the WebExtensions notification.onClicked event… Read more Chrome.notification.create With Chrome.notification.onclicked In A Firefox Webextension Add-on

How do I include jquery and other scripts in my firefox extension? I know this topic is a copy of m… Read more Adding Jquery And Other Js Libraries To Firefox Extension