Thanks for the suggestion, I've added a new feature in 2023.12.0 to turn the blacklist into a whitelist (Set the relevant blacklist mode to Whitelist), as well as a new "Host blacklist" option to specifically enable/disable IMU popups for host websites.

> Sadly, no copy to clipboard, the most frequent function used on daily basis

Try Shift+C (default, modifiable via the Shortcuts tab). Alternatively, you can also setup an alternate popup trigger with its respective popup action set to "Copy link". Note that for this to work, "Enable writing to clipboard" (under the General tab) must be enabled.

Edit: Copy picture is tracked here: https://github.com/qsniyg/maxurl/issues/269

> Drag and drop outside of browser not working

Thanks for letting me know, I hadn't thought of that use case! I suppose there could be an option to prevent dragging the popup (thereby allowing the image itself to be dragged) via a certain key being pressed. Or another option to disable popup movement altogether. Two more options couldn't hurt... :)

Tracked here: https://github.com/qsniyg/maxurl/issues/1082

> but then i miss a shortcut to enforce popup (on filtered items)

If I understand correctly, would a "Force popup trigger" key (that will open the popup regardless of the minimum size etc. options) fix the issue you're having?

> it's not enough until the most useful setting "Open if size is +25%" exists

I thought I'd added an option like that a while back, but I don't see it either. Yeah I completely agree that should be added :)

Tracked here: https://github.com/qsniyg/maxurl/issues/1081

Thank you very much for the feedback, and sorry for the late reply. If you want to follow up, feel free to use one of the social channels (Github/Email/Discord/etc.), it's a bit hard to have a conversation on Mozilla Addons since it doesn't allow back-and-forth conversation unfortunately (unless they changed something recently).