Slate by Tom Donohue
Get Firefox ready for consistent screen shares and recordings: snap the browser to a perfect 16:9 size, in just one click.
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About this extension
Slate resizes your browser window to a perfect size, so you can focus on consistency in your tutorials and demos, not fiddling around trying to remember which size you set the browser to, on your last video.
Hit the clapperboard toolbar icon before you start recording, and snap the browser window to a clean, fixed resolution - no more annoying 'this size is slightly different from the last video', or having to fudge it in post-production.
You can pick from three built-in presets which cover the most common 16:9 sizes: 720p, 1080p, 1440p.
Perfect for developers recording demos, presenting walkthroughs on zoom calls, tutorial/course creators, or if you've ever had to re-record a video because you've only realised - at the very end - that your window was very very slightly the wrong size.
Clapperboard icon from Entypo Icons by Daniel Bruce (CC BY-SA 4.0)
Hit the clapperboard toolbar icon before you start recording, and snap the browser window to a clean, fixed resolution - no more annoying 'this size is slightly different from the last video', or having to fudge it in post-production.
You can pick from three built-in presets which cover the most common 16:9 sizes: 720p, 1080p, 1440p.
Perfect for developers recording demos, presenting walkthroughs on zoom calls, tutorial/course creators, or if you've ever had to re-record a video because you've only realised - at the very end - that your window was very very slightly the wrong size.
Clapperboard icon from Entypo Icons by Daniel Bruce (CC BY-SA 4.0)
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More information
- Add-on Links
- Version
- 0.1.0
- Size
- 12.25 KB
- Last updated
- a month ago (Mar 9, 2026)
- Related Categories
- License
- MIT License
- Version History
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