Extension for Firefox: Unable to access variables or functions from the movie_player element on YTMusic

Looking to develop a Firefox extension for hosting "Yt-Music parties" where users can sync up with the host YtMusic.

The "movie_player" element houses various functions and variables that could be valuable, such as the current song time.

Strange enough, the getCurrentTime() function works in the web console but not within my extension code. Is additional permission required?

Appreciate any insight you can provide.

const ytPlayer = document.getElementById('movie_player')

const test = ytPlayer.getCurrentTime()

console.log(test)

https://i.stack.imgur.com/cMeir.png

https://i.stack.imgur.com/Rhrke.png

javascriptfirefox-addonfirefox-addon-webextensions

Answer №1

Accessing elements on a webpage isn't straightforward for extensions. You'll need to use a content script to facilitate communication by passing data back and forth through messaging between the page and the extension's background script or service worker. Keep in mind that content scripts also don't have automatic access to objects like ytPlayer.

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