The two blues are identical: the CSS has them both colored as "dodgerblue."
Facebook appears to be the only one in the "Proprietary" category. The rest of the blue ones are all "Chrome."
Facebook appears to be the only one in the "Proprietary" category. The rest of the blue ones are all "Chrome."
Chrome-only (neither supported by Firefox or Safari) APIs typically have less concern for privacy and security. For example, Web MIDI lets a web browser install arbitrary binary executables on MIDI devices.