Hi,
I know that the following action enables the middle-click or Ctrl + left-click to open bookmarks in the background in a new tab.
Open about:config
Look up
browser.tabs.loadBookmarksInBackground and set it to true
browser.bookmarks.openInTabClosesMenu and set it to false
Because the middle-click and Ctrl + left-clickis are still inconvenient, I hope you can add this feature:
left click to open the bookmark in the background in a new tab.
The advantage of this is that you can open more bookmarks in the folder by left-clicking multiple times.
And these bookmarks will be opened in a new tab in the background, without affecting the content of the current page that the user is browsing.
So it feels very practical and more efficient.
Thanks again🙏