Trollmarker

TrollMarker is a Safari extension that helps you identify and visually highlight specific Facebook profiles as you browse. Whether you're tracking public pages, community watchlists, or simply keeping an eye on certain accounts — this extension makes them impossible to miss.

How it works: When a profile from your list appears anywhere on Facebook — in your feed, comments, groups, or suggestions — its name is automatically highlighted with a customizable colored background.

Key Features: • Add individual names or profile links to your watch list • Bulk-add hundreds of entries at once via paste • Subscribe to publicly shared lists (raw text files via URL) that update automatically • Customize highlight colors with full background and text color pickers • Adjustable highlight opacity — from subtle tints to bold highlights • Lightweight and privacy-focused: all data stays on your device • No tracking, no analytics, no data collection

Perfect for: • Researchers monitoring public Facebook activity • Community moderators keeping track of flagged accounts • Anyone who wants to visually distinguish certain profiles at a glance.

You can provide the app individual user IDs, profile links, or even user names (although this is going to mark all users with the same name). You can also copy and paste a list of IDs or links. Alternatively you can also provide a list of IDs or profile links that is available through the internet as a raw text file. You can specify multiple such files as sources.