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Limited Availability WebGL extensions

WEBGL_compressed_texture_s3tc_srgb WebGL extension

The WEBGL_compressed_texture_s3tc_srgb extension for WebGL 1.0 and 2.0 contexts adds S3TC compressed texture formats for the sRGB colorspace to compressedTexImage2D() and compressedTexSubImage2D().
Baseline Status: This feature is currently Limited (not yet Baseline). Latest engine implementation shipped on Apr 26, 2021.
Desktop Browser Engine Support
Google Chrome
60
Supported
Mozilla Firefox
55
Supported
Apple Safari
14.1
Supported
Microsoft Edge
80
Supported
Mobile Browser Engine Support
Chrome Android
60
Firefox Android
—
Safari iOS
14.5
Specifications and References
id: webgl-compressed-texture-s3tc-srgb