Cashback Master

4.4 (

122 ratings

)

Extension Shopping 40,000 users

8 support issues

Young Filip

Apr 8, 2026

ADWARE.

This extension appears to modify webpage content without clear user awareness or visible interface elements. In my testing, it injects hidden DOM elements (e.g. cashback_master_notification) and alters page behavior through script injection. Additionally, it can interfere with normal link navigation by introducing intermediate redirect domains.

In some cases, the extension’s activity is only observable through developer tools, where injected scripts and DOM modifications are present even though no corresponding UI is rendered on the page.

This behavior raises concerns regarding transparency and compliance with expected browser extension policies, particularly around user consent and modification of webpage content.

I recommend a review of its background scripts and injection behavior.