As designed Enable addon confusing!

[truonglv]

Let me give some steps:

When you enable addon at checkbox. And addon give some errors, eg: Invalid install class. The error appear then click to dismiss. Addon was enabled. But when F5 that page. Addon was disabled.

So the value expected. If any errors was appeared, the addon should not enabled.

 

[Mike]

Essentially, this is really just how this system is currently designed to work. There's no expectation of failure to enable/disable something (it's generic system used elsewhere). If you get an error, you can't necessarily assume that it went through. Similarly, if we redirected you to display that error and you pressed back, the browser would likely display the checkboxes in the final state, which wouldn't reflect the actual live state.