2020 was a bad year for Chrome extension trustworthiness, but it also revealed some of the malicious techniques that are being used in the wild. Most common being loading and executing dynamic scripts or conditionally executing obfuscated code when certain conditions are met.
It’s very unlikely that you would find out if the extension is malicious just by ...
Ownership data could be scraped from the Chrome web store in order to track changes. With apologies for the shoddy code, here is such a scraper:
import re, sys, urllib
from urllib.request import urlopen
from bs4 import BeautifulSoup
print('EXT> ' + ext)
crxbase = 'https://chrome.google.com/...