Can a Firefox addon's Internal UUID value be made stable?...

Firefox - how do I list installed extensions and identify them in a list?...

Plasmo Firefox production build: Uncaught (in promise) Error: Could not establish connection. Receiv...

How to get notified about changes of the history via history.pushState?...

Can modern Firefox addons/extensions edit user preferences (i.e. about:config properties)?...

paste data from clipboard using document.execCommand("paste"); within firefox extension...

How can I have multiple rows with tabs on Firefox 57+ (Add-on "Tab Mix Plus" no longer wor...

Where to write the receiving code for message sent from contentscript?...

React Router With Browser Extension Popup Window?...

Handling connection loss with websockets...

Browser extensions: How do developers test/live code their JS for a third party website/SPA?...

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

Install modified XPI on Firefox or Fennec while disconnected from the internet...

Unable to open Vue Devtools from Toggle or Select Components in Firefox/Chrome on macOS...

Getting around X-Frame-Options DENY in a Chrome extension? (2)...

Firefox webextension Error: Could not establish connection. Receiving end does not exist...

Is it possible to modify the body of an outgoing HTTP request in a Firefox add-on?...

Reusing a tab in Firefox, TabOpen event, and beyond...

getting firefox chrome-window from XPCOM component...

Help me with my first Mozilla Extension...

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

How to create a drop down list on the Mozilla web browser using XUL and Javascript?...

Send Combination-keystrokes using sendKeyEvent in a Mozilla/Firefox Extension...

Firefox Add-on save to desktop...

Firefox, Mozilla validator error...

Firefox extension: detect that URL in address bar was changed explicitly by user...

How to trigger an event from injected HTML button in firefox extension?...

evaluate system command or python script in firefox browser using javascript...

redirect http request URI in mozilla Addon Builder...

Loading external js to "extend" firefox extension...