I'm having trouble with reliability with this extension.
1) The extension does not list all of the themes I have installed. For example, I have a theme called "Strive" installed from the Firefox Browser Add-Ons website, but it's not reliably displayed in the list by this extension. Sometimes it's available to select, other times it is not.
2) The extension lists themes in a seemingly random order. About 4/5 of the way through the list, there's a line break separating about 6 themes from the rest. Why is this divider there? I have no idea. Ideally, themes should be displayed in alphabetical order by default with the option to customize the list's order.
3) When hovering my mouse over the list of themes displayed by the extension normally causes the browser to preview the theme I'm hovering over. However, it's very easy to get into a situation where the preview is no longer displayed as I hover over additional themes. I have to close the extension's pop up and re-invoke it to try to get the preview function to work again.

I love the functionality this extension provides, but it's frustrating how often these hiccups show up.

Hi. I'm using this with Firefox quantum and it's working ok. Problem is the default Firefox theme keeps appearing in the list, is there anyway to remove it from the theme cycle.

Thanks

It works as intended, however, I do have one concern. Is there anyway to make it pull from 'my favorites' persona collection? As it stands right now, it only pulls from my most recently used.

I had a large collection of personas that used to cycle through nicely when I was using Personas Rotator. However, that add-on has become broken and died completely now. I came to this one as it stated to have the same features, but the most important one is not present.