MAX_FRAGMENT_UNIFORM_BLOCKS

Maximum number of uniform blocks available to fragment shaders. This limits how many grouped constant-data buffers the fragment stage can read at once.

Check your device: WebGL2 Capabilities Report.

Overall Support

≥ means at least this value.

Reported value	Reports
≥ 11	100%
≥ 12	98%
≥ 13	49%
≥ 15	40%
≥ 16	34%
≥ 18	1%

Platform Support

Platform

Reports

Android

Reported value	Reports
≥ 12	100%
≥ 13	92%
≥ 14	91%
≥ 15	49%
≥ 16	48%
≥ 24	8%

Chromium OS

Reported value	Reports
≥ 12	100%
≥ 14	99%
≥ 16	72%

iOS

Reported value	Reports
≥ 12	100%
≥ 14	86%
≥ 16	85%

Linux

Reported value	Reports
≥ 12	100%
≥ 13	99%
≥ 14	98%
≥ 15	64%
≥ 16	4%
≥ 36	1%

Mac OS

Reported value	Reports
≥ 12	100%
≥ 13	93%
≥ 15	92%
≥ 16	88%

Windows

Reported value	Reports
≥ 11	100%
≥ 12	97%
≥ 13	8%

Browser Support

Browser

Reports

Chrome/Chromium

Reported value	Reports
≥ 11	100%
≥ 12	98%
≥ 13	50%
≥ 15	38%
≥ 16	32%

Edge

Reported value	Reports
≥ 12	100%
≥ 14	6%
≥ 15	4%

Firefox

Reported value	Reports
≥ 12	100%
≥ 13	50%
≥ 15	41%
≥ 16	21%
≥ 24	3%

Opera

Reported value	Reports
≥ 12	100%
≥ 14	14%
≥ 15	11%
≥ 16	10%

Other

Reported value	Reports
≥ 12	100%
≥ 14	70%
≥ 15	59%
≥ 36	5%

Safari

Reported value	Reports
≥ 12	100%
≥ 14	82%
≥ 15	81%

Samsung Internet

Reported value	Reports
≥ 12	100%
≥ 14	98%
≥ 16	43%
≥ 36	26%