Canvas Capture

Canvas Capture

Capture video from canvas elements

What is Canvas Capture?
Canvas Capture is a Firefox add-on that allows you to capture video from HTML canvas elements. With this add-on, you can easily navigate to a page with an animated canvas element, click the capture button, and generate a video file of the canvas animation without the need for network access.
Merlin
Stats
By: Chase
Users: 253 ▲ 1
Rating: 4.38 (8)
Version: 1.3.1resigned1 (Last updated: 2024-04-25)
Creation date: 2017-01-30
Weekly download count: 15
Firefox on Android: No
Risk impact: Moderate risk impact
Risk likelihood: Moderate risk likelihood
Manifest version: 2
Permissions:
  • activeTab
  • storage
  • notifications
  • webNavigation
  • http://*/
  • https://*/
Size: 226.59K
URLs: Website
Stats date:

Other platforms

Not available on Chrome
Not available on Edge
Want to check extension ranking and stats more quickly for other Firefox add-ons? Install Chrome-Stats extension to view Chrome-Stats data as you browse the Firefox Browser Add-ons.
Chrome-Stats extension
Merlin
Summary

The Canvas Capture extension allows video to be captured from HTML canvas elements.

Currently, video is only output in the webm container in the browser's choice of codec (typically VPX).

To use, simply navigate to a page with an animated canvas element and click the extension's browser action (toolbar button). A list of canvases present on the page will be displayed with some details about each one. Click the capture button next to the canvas that should be captured. When finished, click the stop button and a link will be generated to download the resulting video file (the file is constructed using Blobs; no network access is required).

Canvas Capture produces video files of canvas elements using the MediaRecorder, MediaStream and Blob APIs.

User reviews
by DM, 2023-08-16
View all user reviews
Safety
Risk impact

Canvas Capture may not be safe to use and it requires some risky permissions. Exercise caution when installing this add-on. Review carefully before installing.

Risk likelihood

Canvas Capture is probably trust-worthy. Prefer other publishers if available. Exercise caution when installing this add-on.

Upgrade to see risk analysis details
Screenshots