Essential if you like to use a bunch of different themes.

Would be nice if it could also have some sort of scheduler, so instead of just rotating themes on each launch, you could define a specific 'playlist' to be used say for day vs night, or for different months.

thank you so much :)

Thanks for this extension!
To hide a bunch of new themes imposed by Mozilla, you need to create the browser.theme.colorways.enabled parameter (logical, false) and restart the browser.

I am amazed at the very useful and unique features.

Taking into account the knowledge of the developers, I thought about the following.
The Chrome Extensions web store has the following extensions:

https://chrome.google.com/webstore/detail/simpleextmanager/kniehgiejgnnpgojkdhhjbgbllnfkfdk

Add-ons like this,
Can you create it as a Firefox version of Extension Shortcut Manager?

I want to ask you.

Currently in the Chrome Web Store.
I think this is the only add-on that doesn't exist in the Firefox web store.

This is one of the biggest reasons to hesitate to use Firefox on a regular basis.

I thought it might be possible with the knowledge of the developer.

Thank you.

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It's an honor just to see it.

I'm not a programmer, But
Personally, I learned a little JavaScript for efficiency.

It's ridiculously difficult.

I think the developers who are visibly active are great.

EDIT: Thanks for the Alpenglow fix!!!

I've been using this extension for a while now and it works beautifully!

I love this extension. It makes me happy. The only thing that would be better, would be a way to maybe checkmark certain ones to rotate from, so that I'm not rotating all my off seasons, christmas, fall, winter, etc, in summer. Thanks developer!

Best automatic theme changer for ages if you like to have many different themes automatically switched :)

I have 2 scrollbars instead of 1.

Works fine since years, the only and the best addon for the required task.

Optionrequest:
Would it be possible to add the feature to create a list of all installed themes to be able to copy the list into the clipboard. I would like to archive the list of managed themes in case of browser or system crashes.

Please do not discontinue. I love my personas and would be glad to pay for this extension to be able to make my firefox pretty. The personas is making Firefox beautiful to use. This customization feature is only available here in Firefox and is the only reason I HAVE USED FIREFOX SINCE 2011.

Lovely.

All I need for happiness this evening and propably many to come.