Base64 decode & copy

Adds a "Base64 decode selection" menu item to the context menu, enabling you to conveniently decode and copy Base64 text to your clipboard in one action.

Usage instructions:
1. In your browser window, select the Base64-encoded text you would like to decode.
2. Right-Click and select "Base64 decode selection".
3. A confirmation box will appear. If successful, the decoded text will be displayed in the confirmation box and copied to your clipboard to be pasted where needed.