I am running this piece of code and the firefox is giving error
Uncaught ReferenceError: browser is not defined
const manifest = browser.runtime.getManifest();
So far I've tried using this:
var browser = browser || chrome;
Still in this, firefox is throwing a new error that is
Chrome is not defined
The respective browser references are only defined in their respective scopes.
You might want to do something like this to remain platform independent.
if (typeof browser === "undefined") {
var browser = chrome;
}
The function is only accessible when the js is running from a Chrome app. Meaning this is only available from background scope.
And the firefox does not have any browser or chrome property since ver 65.
Please have a look on these:
source stackoverflow answer: chrome.runtime.getManifest() is not defined
Chrome doc: chrome.runtime
Firefox removal info: https://developer.mozilla.org/en-US/docs/Mozilla/Gecko/Chrome/API/Browser_API/getManifest
Hope these will help.