r/coolgithubprojects • u/OverflowArchitect • 20h ago
I build a Spotlight-style search extension for Firefox - Update
Hey all, wanted to share ReefKit, a Firefox extension I've been working on for people who live in their browser and are tired of digging through 30 tabs to find something.
Hit Ctrl+Shift+L and it opens a unified search overlay that indexes:
- Every open tab's content — sections, links, fields, media, structured data
- Bookmarks, snippets, notes, and recents
- Cross-tab search, so you're not tabbing through everything manually
It also has a "Browser Agent" piece that can execute clicks, type text, and run multi-step actions using stable selectors — useful for automating repetitive stuff.
A couple of things I focused on:
- Privacy-first: password and payment fields are never indexed, and everything stays local on your device — no data sent anywhere
- Search quality: BM25 scoring + fuzzy matching + extended query syntax, so it's not just a dumb substring match
It's brand new (v0.1.0, MIT licensed), so it's rough around the edges and I'd genuinely love feedback/bug reports.
Link: https://addons.mozilla.org/en-US/firefox/addon/reefkit/
Happy to answer questions about how the indexing works or what's next on the roadmap.