Fiddler can easily decode responses – how to make this automatic?

If the goal is to remove compression during the processing of a session:

1. That’s what the “Decode” button on the toolbar does.
2. That’s also what Rules menu > “Remove all encodings” does.

If the goal is to remove the encoding after session processing is complete, select all of the sessions (CTRL+A) and use “Decode Selected Sessions” on the Web Sessions list’s context menu.