Artem S. Tashkinov

Weird you've posted a screenshot. Must have been a lapse on your part considering you've not posted any information about your HW or software like the kernel version or Mesa...

Sadly this is still broken as of 4.615.

Developer console error messages:  I'll try to test earlier versions to see if there's one where previews are working.

Here's something interesting, the preview images fail to load with the `NS_BINDING_ABORTED` message: 

I can imagine there's a conflict with some other extension but I've tried to disable them one by one and it's not helped: 

1. I don't have any settings enabled in the extension. It's currently configured by default. 2. On the Mozilla extensions website I've not found versions older than the one where...

What's really weird is that I have two Firefox profiles with the same extensions on different PCs and the issue exists only on one of them. So, * it's not...

This is more relevant than ever because WebView recently has become really fat. We're talking about over 350MB of RAM consumption for displaying a text email.

@cketti I've been thinking about this issue and I think I've found a wonderful very simple workaround/solution. Once K9Mail is sent to background you simply restart it. That's it. That...

Not stale.