How should I ensure messages are coming from my own extension in my content scripts. I am talking about when using browser.runtime.onMessage.addListener. Do I just hardcheck the sender id against my own? Or is there a way to programmatically get my own extensions id from the content script? Or anot…

Quick answer: no. You don’t need to check that. A longer answer and to expand on what @juraj.masiar said: When sending messages, you can use runtime.sendMessage() to send them to any extension based on its id: Sends a single message to event listeners within your extension or a different extensi…

How to and do i need to ensure message from my extension?

Add-ons Development

juraj.masiar (Juraj Masiar) October 7, 2022, 6:55am 2

I don’t think other extensions can send you messages to that listener.
For that there is this API:

Topic		Replies	Views
WebExtension - interactions between multiple extensions possible? Development	5	1499	March 26, 2017
Using runtime.sendMessage API from webpages Development webextensions-api	7	2828	March 15, 2019
Send message to extension from a web page Development	1	6206	November 4, 2016
Send a message from my website to my extension background page Development	4	4473	January 2, 2020
browser.runtime.sendMessage not working for injected iframe Development	5	2688	December 30, 2021

How to and do i need to ensure message from my extension?

Related topics