URLs List -Fork wót SexyWerewolf

With this add-on, you can:

Copy URLs: Quickly copy all URLs from open tabs in the current window.
Filter URLs: Narrow down the list of URLs using a custom filter.
Sort URLs: Sort the URLs alphabetically in ascending or descending order.
Open URLs: Easily open URLs from the list that aren’t already open in your browser.
Save URLs: Save the list of URLs to a text file for later use.

This forked version improves user experience by maintaining filter preferences between sessions, making it even more convenient to manage and organize your open tabs.