Yup, as solotronics said.

On Chrome extensions, minor bugs (or minor bugs in the libraries you depend on) might end up having far worse consequences. Read/write access to only linkedin.com can still leak a decent amount of unwanted information in case there's an exploit.

Hmm. I'll have to read into that more.

I don't use any external libraries, I wrote all of the code in the extension, and the only external requests made outside of the extension are to Google Fonts, so I wonder if it'd be possible to infect this extension.

nothing about yours in particular but recently there have been attacks via 3rd party extensions in general

https://www.wired.com/story/chrome-extension-malware/

edit: tried your extension out and I really liked it! thanks for sharing