Fireworks Timer

Measure firework durations, including prefire/lift times!

As of June 2026, Fireworks Timer has 36 users and a 5.00/5 rating from 3 reviews in the Productivity category.

Productivity

Chrome Web Store ↗.crx

Users+63.6%

Rating0%

5.00

3 reviews

Reviews+50.0%

Version

1.1

Manifest V3

History

9 snapshots

Tracking since Apr 1, 2026.

View as table

Date	Users	Rating	Reviews	Version
Apr 1, 2026	22	5.00	2	1.1
Apr 8, 2026	23	5.00	2	1.1
Apr 19, 2026	21	5.00	2	1.1
Apr 24, 2026	28	5.00	2	1.1
May 1, 2026	35	5.00	3	1.1
May 8, 2026	32	5.00	3	1.1
May 13, 2026	34	5.00	3	1.1
May 19, 2026	35	5.00	3	1.1
Jun 6, 2026	37	5.00	3	1.1
Now	36	5.00	3	1.1

Permissions & access

Permissions: None declared
Host access: None declared

Screenshots

About

See the current video time relative to a user-defined starting point — perfect for measuring firework durations for Finale 3D!

You can also measure the prefire / lift time of the firework and see a separate duration that excludes the prefire time — exactly what we need for using the "Spread out evenly" function in Finale 3D!

This extension works on YouTube videos, Vimeo videos, and other video files played directly in the browser (mp4, webm, ogg, and mkv supported)! Use the < and > keys to navigate between frames in raw videos, on Vimeo, or on YouTube.

• Seek to the time you want to mark as the beginning, press "B", then the overlay will show you the current video time relative to that point. 

• After marking the beginning, seek to the first break of the firework and press "P" to mark the prefire time. Now the overlay will show you the duration of the firework, the prefire time, and the "spread duration" (which excludes the prefire time).

• Copy any of these values to your clipboard with a single click! Copying the prefire time includes a "PFT" suffix, ready for pasting into Finale 3D.