Why The Permission List Doesn't Settle This
An add-on keeps calling home — is that something to worry about?
The question arises for anyone who has opened a network monitor with extensions installed. Traffic from an empty tab appears alarming, and figuring out who is sending it and why is hard at first glance. It is worth understanding how to separate a harmless update from telemetry.
I added a popular extension for tabs, and everything seems to work. But the network monitor shows it contacting some third-party domain once a minute, even when the tab stays idle. The description doesn't mention it. Is this tracking, or am I overthinking it?
The first move is to separate yours from theirs: disable all extensions in one go and see whether the background noise disappears. If it goes quiet, the cause is one of them, and you switch each back on in turn until the traffic reappears. That finds the culprit in a couple of minutes, no guesswork.
Why the permission list doesn't settle this
Access to tabs in the manifest and sending their list outward are different things, and a lone permission line can't distinguish them. Formally the extension honestly declares access; what it does with that access is not apparent from the manifest. So look at the traffic, not the permission list.
It is simpler not to guess every time and leave seo tools for webmasters within reach — ones that state plainly they gather nothing. And this tab task is quick to close with a telemetry-free swap — redirect loops and ping-pong patterns, works the same and doesn't call home.
Reviews of this sort are valuable not for paranoia but for the habit: a few minutes with the network monitor after the install, and "pinging somewhere" becomes a plain picture of what goes where.