Long Press New Tab Plus by YousefAYR

Click and hold any link to open it in a new tab, no modifier keys or context menu needed. Each mouse button and drag direction can run its own action.

Long press
• Choose an action for the left, middle and right mouse buttons, each with its own hold time if you like:
– Open Link in New Tab (background / foreground): placed like Ctrl/Cmd+Click, right after the current tab and the tabs you already opened from it. This is the default for the left button.
– New Tab at End (background / foreground)
– Open Link in New Window or New Private Window (foreground / background)
– Open in Current Tab
– Close Current Tab (hold anywhere on the page)
– Save Link
– Copy Link. On an image you can copy the link, the image itself or the image's address.
– Send to a web service (your own URL prefix)
• A quick click still works as usual. Shift, Ctrl, Option and Cmd clicks are left to Firefox.
• On macOS, the context menu can be blocked on links so a right-button hold works.

Drag link
• Drag a link up, down, left or right to run that direction's action, either when you release it or as soon as it passes the distance.
• Small mouse movements during a click still count as a click.

Containers
• New tabs and windows stay in the page's container, open without one, or open in a container you pick.

Closing tabs
• Choose the tab Firefox switches to when you close one: tree order (stays within the group of tabs opened from the same tab), the next tab, the previously active tab, or Firefox's default.

Excluded sites
• Turn long-press and drag off on sites you list, using simple patterns or regular expressions, with a box to test an address.

Settings
• Right in the add-on's Preferences tab, or in a tab of its own, with light, dark and darker themes that can match Firefox.

Credits
Based on "Long Press New Tab" by Kunihiro Ando, released under the MIT License. This fork is not affiliated with or endorsed by the original author.

Source code: https://github.com/YousefAYR/long-press-new-tab-plus