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Notes by Firefox Test Pilot
Simple note app on Firefox — Notes adds a simple, one-page notepad to your browser’s sidebar
since Jun 12, 2026 · HTTP 200
CohortClass of 2017What it is
Simple note app on Firefox — Notes adds a simple, one-page notepad to your browser’s sidebar. We’ve added a few basic formatting options to start, but we want your feedback to tell us what features you’d like to see us add. [Browser Extensions, Productivity, Tech]
HTTP liveness
12 probes since Jun 12Jun 12Jul 13
AliveHard-dead (404/5xx/parked)RedirectedUnverified (timeout/DNS/block)
Observed events
probes · press · GitHub- Jun 12, 2026First probe — redirectedRedirected offsite
Discussion 0 comments
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Pulse Indexobserved activity
12 probes0 pressGitHub –Tranco –
Not enough observed signals for a Pulse Index (needs 2+ signal families).
Cohort survival · Class of 2017weekly
13,497 products launched in 2017 · 100% still active
13,462 active35 sunset
Still active
100%
Median lifespan
4.9y