Building an add-on to hide a <div> block on an HTML page...

Is there an addon which you can test css selectors in firefox?...

Firefox WebExtension toolbar buttons to toggle sidebars...

How to mute active browser tab programatically with JS tabs API?...

Inspecting WebSocket frames in an undetectable way...

Firefox Quantum REST client?...

Firefox Add-On: window.addEventListener( "load", init ) not firing event...

Getting certificate chain from rejected connections in firefox...

Record Firefox Web Browser session from my mozilla addon...

Notification when the value in Address Bar changes...

TypeError: [API] is undefined in content script or Why can't I do this in a content script?...

how to persist the firefox temporay addon on browser restart...

How do you use firefox Extensions to change CSS of a web site?...

Add a Keyboard Shortcut to Firefox Extension...

Create Firefox Addon to Watch and modify XHR requests & reponses...

Getting url from active tab on external page...

loading simple iframe from extension firefox...

How to install firefox addon mozrepl on Web hosting server...

webRequest.onHeadersReceived not firing...

page_action click does not work while browser_action click works in Chrome Extension?...

How to check whether the html has changed?...

Firefox extension - How to show text to user from background script?...

CSP: How to debug violation: eval: "script-sample: var KERNEL = ..."...

Convert browser extension to regular website...

GM_setClipboard not copying to clipboard...

Problem with adding functionality to JavaScript Firefox Extension?...

Accessing global variables in Firefox extensions...

How to get notification when window closes in Firefox extension?...

How do you create an HTMLDocument from a string in Mozilla?...

firefox extension status bar overlay run...