Is Clearly Reader safe?

Clean risk

Clearly Reader sends the current page URL to trk.lesslab.net when you create or remove highlights.

When you use the page highlighter, the extension posts an event to trk.lesslab.net with the current page URL. Highlight creation events also include the highlight color and character length, while removal events are sent with the page URL.

Lesslabv4.8.0Firefox Add-ons
1Risk
Who publishes it

Lesslab - no other listings under this identity, 5 shared hostnames

What this publisher told the store about itself, and the other listings that told it the same thing.

Publisher
Lesslab

Shared hosts - 5 hostnames

Hostnames hardcoded in this extension that few other listings call. That can mean one operator behind both, and it can equally mean a small shared vendor, so it is context rather than a conclusion. Hosts that many listings call are left out: they are services, not connections.

api.clearly.dev
Also called by 1 other listing: Clearly Reader
api.clearlyreader.com
Also called by 1 other listing: Clearly Reader
app.clearlyreader.com
Also called by 1 other listing: Clearly Reader
clearlyreader.com
Also called by 2 other listings, including Clearly Reader
trk.lesslab.net
Also called by 4 other listings, including Lunabot - AI on any webpages, Relingo - Master vocabulary while browsing websites and watching YouTube

AI-generated. Findings may contain errors. Those marked Verified have been manually reviewed.

Publishers can request a review.

What it can do

Permissions this extension asks for, as declared in version 4.8.0. Asking for a permission is not a finding on its own - it is what the extension can do if it chooses to.

  • Read and change your data on every site you visit

    <all_urls>

  • Add items to the right-click menu

    contextMenus

  • Store data in your browser

    storage

  • Act on the current tab, but only after you click the extension

    activeTab

  • Run its own code inside the pages you visit

    scripting

Where it sends data

Destinations our analysis observed Clearly Reader contacting. Sending data somewhere is not a finding on its own - an extension that syncs your settings has to talk to its own server - but it is where your data can go, and who else it goes to.

  • trk.lesslab.net

    Clearly Reader sends data to trk.lesslab.net. No other extension we have analysed sends data here.

Updated 30 September 2026amo-2692698