Open Multiple URLs av ht

Opens a list of URLs and optionally extracts URLs from text.

Source Code:
https://github.com/htrinter/Open-Multiple-URLs/

Changelog:
https://github.com/htrinter/Open-Multiple-URLs/blob/develop/CHANGELOG.md

Permissions:
- "Tabs" permission in order to open new tabs. The permission appears as "Access your browsing activity" because URLs of tabs are accessible, although this access is only used to set the URL of tabs opened by the extension.
- "Storage" permission in order to save settings and user input.
- "Search" permission in order to open standard search for input that is not a URL.
- "ContextualIdentities" and "Cookies" for opening URLs in Firefox Containers.