Thank you for your feedback! The extension is designed to force the Web results page to provide a more streamlined experience, assuming most users prefer this as a more permanent setting. However, you can easily toggle it on or off through the extension's popup window.

Integrating the All tab functionality may require a more complex workaround, like adding a separate button, especially since the way the extension works makes it difficult to understand the context in which the user is trying to switch from the parameter to no parameter. That said, I’ll definitely consider adding this functionality in a future update. I hope this helps!