Thing One: On July 29, Jaxx released a "Statement on Bitcoin Cash" via the Decentral Blog. Money quote:
As a multi-platform, multi-currency blockchain wallet, over the past many days, we have been flooded with requests to support Bitcoin Cash (BCH). Yesterday, we officially made the decision to work towards full integration.
Since Jaxx users are always in control of their private keys, corresponding Bitcoin Cash (BCH) will be safe in your Jaxx wallet. However, please know that you will not be able to access/send/receive your Bitcoin Cash (BCH) until the integration takes place.
The process of downloading and indexing the Bitcoin Cash (BCH) blockchain is lengthy. We are currently downloading the blockchain and expect indexing to start shortly. The indexing of a blockchain as big as Bitcoin’s has an unknown duration and could take anywhere from a few days to 1 to 2 weeks. You will be then able to claim them once Jaxx fully integrates Bitcoin Cash (BCH) into the wallet.
Thing Two: Yesterday, Jamie Redman of Bitcoin.com reported:
On August 16 at approximately 8 am EDT the mining pool Bitclub Network mined an 8MB block on the Bitcoin Cash (BCH) blockchain. Block #479469 cleared over 37,000 transactions from the mempool making it the largest block found so far on the BCH chain. Meanwhile, the BCH network continues to capture infrastructure development and industry support.
Thing Three: As of now, I'm still waiting on Jaxx to "fully integrate Bitcoin Cash into the wallet." Presumably I'm not some outlier awaiting a wallet update that others have already received -- as of three hours ago, the Jaxx area on Reddit had a comment titled "Any ETA on bitcoin cash support?"