Is Offers.com safe?

Low risk

Offers.com looks up your current site against its merchant list and fetches matching coupons over plain, unencrypted HTTP.

Every time you switch tabs or open the popup, Offers.com checks the site you're on against a cached list of partner merchants and, on a match, requests coupon offers for that merchant from its own backend. These lookups and responses travel over plain HTTP rather than HTTPS, so the merchant site you're browsing and the offer data returned are readable and tamperable by anyone on the same network, such as open Wi-Fi.

Part of this rating comes from analysis signals we haven't published as detailed findings yet.

Offers.com v3.0.18resigned1Firefox Add-ons
20Risk
Who publishes it

Offers.com - no other listings under this identity, 2 shared hostnames

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

Publisher
Offers.com

Shared hosts - 2 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.

lastcall.com
Also called by 1 other listing: Qwintry Shophelp
cheapoair.com
Also called by 3 other listings, including Smarty - Coupons & Cash Back, Smarty

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 3.0.18resigned1. 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 www.offers.com

    http://www.offers.com/

  • Read and change your data on maxcdn.bootstrapcdn.com

    http://maxcdn.bootstrapcdn.com/

  • Read and change your data on every site you visit

    http://*/*

  • Read and change your data on every secure site you visit

    https://*/*

  • See the address and title of every tab you have open

    tabs

  • Store data in your browser

    storage

  • See every page you navigate to, as you navigate to it

    webNavigation

  • Read and change cookies, including the ones that keep you signed in

    cookies

Where it sends data

Destinations our analysis observed Offers.com 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.

  • addon-api.offers.net

    Offers.com sends data to addon-api.offers.net. No other extension we have analysed sends data here.

Updated 30 September 2026amo-12055