That's not a bad idea, though the exact format will be an issue, and you could achieve this through your file manager and a renaming program, but that's understandably more effort. Maybe I can add y/m/d h/m/s variables that you can use as desired. I'm slogging through technical work on my addons right now and don't expect to work on new features for some time still though. Please follow progress or discuss here: https://gitlab.com/Marnes/doubleclick-image-downloader/-/issues/78

Hey, glad you like it, thanks for the extensive post. Sorry for the late reply, life is busy.

Your #1 idea, sorry, but it's too much work to create a configurable hotkey just for that. I could do it as a toolbar button instead quite easily, but that feels odd. Anyway, please follow up on it here: https://gitlab.com/Marnes/doubleclick-image-downloader/-/issues/72

As for #2, what would %folder% refer to? If you mean changing the download folder itself, sorry, but I couldn't even if I wanted to. Modern addon design makes this a privileged browser setting, not for addons to control. If you have a different idea for %folder%, please post an issue on gitlab (like for #1) with an explanation.

Hotkeys for things are generally a lot of work and maintenance, and just not worth it then, sorry. As for the options screen order, changing the order would be good for one person but bad for someone else. I think it's balanced as it is now.

For your folders, would it be a solution if I added an alternative counter variable that would increment at a toolbar button press? Then you could set up a numeric folder pattern and hit the toolbar button to end one group of images in your session. Follow up here: https://gitlab.com/Marnes/doubleclick-image-downloader/-/issues/73

You'd be the first person to donate in a long time, and the first since I completely rewrote all my addons with a whole new coding framework and language, so it'd be much appreciated, thanks :)

Modern addons are not able to control download locations, sorry. This is a deliberate design regarding user settings in browsers. I couldn't implement it even if I wanted to.

Thanks for the constructive input, but unfortunately filename extensions are not a reliable way to determine file types. They can be missing, simply incorrect (how often I've come across a .jpg that was actually a png and vice versa...), or some website-specific filename thing that happens to have a period in it so it looks like an extension. Browsers can determine the content type themselves by looking at the data, but in HTTP requests the convention is that the server must provide a human-friendly filename with a convenient extension and only the browser can make a last ditch attempt. If a server provides no meaningful name for a file triggered by this addon, then there's nothing it can do to help the situation, it's the least qualified party involved.

I'm glad you like it, thanks for the message. "automatically assign an extension of your or the user's choice to any picture" this is possible, but it would be incorrect and bad behavior. Blindly defaulting to adding .jpg for example to any unknown image, means e.g. a png image could get the jpg extension. Nowadays this should cause no issues, but I consider it an anti-feature because it's simply wrong, so I will not implement it, sorry. Browsers have tricks to determine an extension and will do so whenever possible. If one cannot be determined by the browser, addons are not in a better position to try it. As for the AMO link, I'm surprised firefox doesn't provide that link by itself... So I guess, I might add AMO links to the descriptions next time I work on the text.

Thanks for the detailed feedback. As for file extensions, extensions are not actually a required thing in filenames, they're more of a loose convention. Websites tend to forego them depending on how their images are loaded (e.g. from data streams rather than files). It's the browser's responsibility to determine an extension if at all possible, based on data from the webserver if provided (such as a suggested filename, with or without extension). It's really not within an addon's power to ensure the presence of file extensions, or infer any, sorry.

Only via your browser settings. Addons are not allowed to manipulate download locations.

Sorry for the late reply, glad you like it, thanks. I like your idea, please follow progress here: https://gitlab.com/Marnes/doubleclick-image-downloader/issues/71