What is Reddit's opinion of Dustman?

From 3.5 billion Reddit comments

There seem to be a couple of addons, but they dont seem to exactlty match your requirements

• https://addons.mozilla.org/en-US/firefox/addon/tab-auto-close/
• https://addons.mozilla.org/en-US/firefox/addon/dustman/

If you want i can write you an addon (in a couple of days), which at least cover these points

1. close tab by (custom) idle time
2. irgnore pinned
3. ignore playing audio
4. ignore pages which have input/text area elements with text in them
5. and maybe a toolbar button to allow a user to explicitly exclude tabs from auto closing
   

Point 4 is a bit different from what you descibe because it is actually not so easy to realiably detect real "form inputs" , that is because input forms today can be implemented via AJAX. There doenst need to be any real html form elements involved just some text input elements where the user can input text.

Implementing 4. in this slightly less correct way should be "good enough" for 90% of websites but makes it a magnitude easier to develop.

If you are interested PM me or reply just reply on this comment. Later, maybe.