Is sslspeedy2 safe?

Clean risk

sslspeedy2 loads JavaScript from 678in.com and uses it to set the browser's proxy settings.

The extension is a proxy tool that logs in to its vendor's backend at 678in.com, fetches a server list and proxy settings, and builds a PAC script that it applies to the browser. The login username and password are sent in the query string of a request to 678in.com, and the response is run as script inside the extension's own pages, which have proxy control.

vpnsov2.8.3Firefox Add-ons
3Risk

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 2.8.3. 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 678in.com

    https://678in.com/*

  • Read and change your data on go2https.com.com

    https://*.go2https.com.com/*

  • Read and change your data on every site you visit

    <all_urls>

  • Route all of your browsing through a server of its choosing

    proxy

  • Store data in your browser

    storage

  • Watch every request your browser makes

    webRequest

  • Watch, block and rewrite every request your browser makes

    webRequestBlocking

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

    tabs

Where it sends data

Destinations our analysis observed sslspeedy2 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.

  • 678in.com

    sslspeedy2 sends data to 678in.com. One other extension we have analysed sends data here.

Updated 15 October 2026amo-2765033