(Feb. 1) Thank you for your review. Do you mean instead of (or in addition to) "Reload All Tabs", you need "Reload Tabs to the Right" ?

If I understand correctly, I probably can add that as an option.

(Feb. 8) Thank you for the additional info. The Reload All Tabs works on tabs restored from previous sessions using the built-in session restore feature (first checkbox on the Options/Preferences page).

I don't know why my add-on doesn't "see" the tabs restored by the session manager extension. Maybe I can test that later -- is it Tab Session Manager? Meanwhile, your session manager extension might have a setting or its author might have advice on how to force a reload of the restored tabs.

You also can post a new "issue" on the Github site for this extension at https://github.com/jscher2000/switch-to-previous-active-tab/issues .

Also, if the Options panels don't look like the screenshots listed here on the Add-ons site, you could share a screenshot there.