[pcwalton]

There were beginnings of talks to get cross-vendor consensus on Pepper (which would be a prerequisite to any standardization attempt of PNaCl) in 2010: https://mail.mozilla.org/pipermail/plugin-futures/2010-April...

The general consensus among non-Google browser vendors was that just using the existing browser APIs was a more desirable approach than Pepper. Since then, Pepper has remained a Chrome-specific technology.

[cpeterso]

Could Google add NaCl support to Firefox with an add-on?

[TazeTSchnitzel]

They could, but why would they?

[dman]

To help developers?