Thanks for the question! The Jaxx wallet supports the ERC20 standard, so you will not lose your TLT if you contribute using such an address. However, Jaxx is selective about what tokens they fully integrate and opaque in their decision-making process; we are pursuing their cooperation. But don't worry - in the event Jaxx does not fully integrate the TLT, you can always make use of the ability to export/import your private keys.