All ERC-20 tokens are built on the Ethereum blockchain, so they all have the same ETH style addresses and can receive any ETH token successfully. Due to the nature of Jaxx’s wallet structure, for each token your Jaxx wallet holds, a specific set of HD wallets is created to only recognize the given token. (ex. you can send GNT to a REP address and your JAXX wallet will only detect the REP even though the GNT is also there.)
In order to access the funds you have sent to your ERC-20 token wallet, you will need to export the private keys of the wallet holding the funds and import it to a wallet like myetherwallet.com
Myetherwallet.com is a wallet provider that allows you to access all of your ERC-20 tokens from one ETH address.
To export your private keys from your JAXX wallet click on the MENU button of your JAXX wallet, then click Tools, then Display Private Keys. You can cross reference your addresses with the blockchain transaction to identify which address you will need to import to myetherwallet.
Once you are at myetherwallet, click the ‘Mnemonic Phrase’ link under the ‘Jaxx/Metamask?’ getting started link. Next, select ‘Private key’ and enter the private key to the address you got from your Jaxx wallet. Once you have done so you will see and have access to a list of every ERC-20 token that has been deposited to that address.