Fix firefox support

[ebebbington]

Unfortunately, firefox support broke after version ?.26.x

We recently had to remove it as the team spent long enough debugging it, with no solution in sight.

The code still exists, but some is commented out.

Some links that might be helpful:

https://github.com/sienori/Tab-Session-Manager/tree/master/src https://github.com/cyrus-and/chrome-remote-interface/blob/f23fb2c06cfba775bd14166106596bacac21ea24/lib/chrome.js#L278 https://www.npmjs.com/package/chrome-remote-interface

We still have Chrome support so it isn't the end of the world

When this is added, we can add back the docs, which were commented out in this commit: https://github.com/drashland/website-v2/pull/89/commits/660f1be3df2c395caf21b017a8294240bd006152, just revert that commit

[ebebbington]

no longer supporting firefox as of #145