What Browser Extensions Do I Have?

This tool checks for DOM modifications, injected scripts, and resource availability that indicate common extensions. For example, ad blockers modify page elements, password managers inject form helpers, and some extensions add visible UI elements that can be detected.

No. This tool can only detect extensions that modify web page content in detectable ways. Extensions that work silently in the background without touching page content are invisible to this detection method. The results show common extensions, not a complete list.

Yes. Your installed extensions contribute to your browser fingerprint — the unique combination of settings that can identify you. Unusual or rare extensions make your fingerprint more unique. Privacy-focused browsers limit what information extensions expose to websites.

Detection can fail if extensions are disabled, running in limited mode, or if they use techniques to avoid detection. Some privacy extensions specifically block detection attempts. Browser updates can also change how extensions interact with pages.