I am working on a Chrome extension that interacts with an iframe on a webpage. What I want to do is click on a checkbox inside the iframe, after which the UI should update as if a regular user clicked on the checkbox. However, even though the checkbox is clicked (as confirmed by the logs), the UI does not update.

I’m trying to write a chrome extension that plays video files by looking for certain attributes and syntaxes in the image filename associated with the video.

I’ve spent hours looking at solutions online but the ones I’ve found are either not applicable or just don’t seem to be working for me. I’ve looked at the documentation as well and can’t see what I’m missing.

My extension uses an old library, which is a wrapper over HTML 5 Filesystem API for managing local files.

I am getting an error with not being able to establish a connection from background to content. I want the background to be able to send a message to every instance of the content page to globally run a function for all tabs. Any help would be greatly appreciated as I have been stuck on this for hours. Thank you!

I’m learning Javascript and I thought I can make a small project but I’m having so many errors I have no idea what is wrong with my code. I’m trying to make a chrome extension that adds furigana to a japanese text, for this I’m using Kuroshiro library.

So I made a Firefox Addon for inserting templates into text fields (for Customer Support agents like me).

I want to communicate between content.js and background.js, but it doesn’t work. There are no errors, and I can communicate between popup.js and background.js normally.

I am trying to write a simple Chrome extension that copies some information from one webpage and fills the appropriate input fields on another. The input field’s value is (visibly) set by JavaScript: inputField.value = "some value" in a content script injected into the webpage. Then, when I click on other input fields, its value changes back to its original value (which is not desirable). I am trying to find the cause of this.

I am trying to create a Chrome extension. But when I build the extension file, it shows following error: