How do I have Pale Moon insert new tabs next to the current?

[Moonchild]

Preference: I prefer new Tabs to be inserted next to the current Tab

If you prefer new browser tabs to be inserted immediately to the right of your currently active tab, Pale Moon does offer this feature (like some other browsers).

It can be set as follows:

In Pale Moon 12.1 and later, you can find this feature under Options, category Tabs.

For older versions (12.0 and earlier):
In the address bar, type about:config and press enter. This opens the advanced configuration editor.
Find the parameter browser.tabs.insertRelatedAfterCurrent and set it to true