Temporary Bookmarks wót sa1hon

Click the toolbar button to create a "Temporary Bookmarks" folder
and add current page as a bookmark to there.
When a bookmark in it folder expires, it is automatically deleted.

Description:
* The timing of deletion is when the browser is launched.
And shows the number of deleted bookmarks in a badge for 1 minutes.
* Bookmarks are deleted recursively, but folders are never deleted.
* The default expiration date is 1 month and can be changed in the settings.
* You can change the created folder name (Temporary Bookmarks) later.
* The same applies to bookmarks moved to Temporary Bookmarks folder.
* Add bookmarks with shortcut keys. It's not set by default
and can be set in "Manage Extension Shortcuts" in the "about:addons" page.

Source code: https://github.com/saihon/temporary-bookmarks