I’ve gone through the list a bit and out of the most popular ones that spied on you, most were adblocks, coupon finders or AI Chatbots.

Some notable extensions:

• Stylish. A theming extension, I used to use this back in the day!
• Smarty. Some sort of coupon code thing like Honey
• Video Ad Blocker Plus for YouTube™
• Video Downloader PLUS
• Karma - Another coupon thing
• Audio editor online Audacity. Some sort of web-based Audacity clone?
• GIMP online - Same sort of thing as above with GIMP
• Ground News Bias Checker - To be fair it probably makes sense this one sends the URL you are visiting, as it’s purpose is to look up the bias of the publication you are looking at.

Worth a read regardless.