Hi DavidSorge, if the extension is still enabled (https://addons.mozilla.org/firefox/ad.../open-tabs-next-to-current/), I don't know why it stopped working. Have you checked on the Add-ons page whether the extension has an Options panel that might need a tweak?

Note: There is no built-in about:config setting to open a new tab next to the current one (until Firefox 61, which won't run on Windows XP).

Any reason you are running Firefox 51 instead of the Extended Support Release of Firefox 52?

Hi jscher2000, I looked at the page but I could not find an options panel. After rummaging around I found this: https://github.com/sblask/webextension-open-tabs-next-to-current/issues/26

dingdingdon commented on Jul 21, 2017 •

I think this bug affect me using the imacro add on to create a new tab; I have to stay on version 1.1.5 to avoid the bug. I have recorded the action:

The result should be google page next to the current select tab, the old version did the job, but after version 1.1.5, everything broke...

I believe there was a choice to use new tab next to vs. new tab at end in an older version of FF. It started after an update. Not liking change I remember being upset about it, but after experimenting I decided I liked new tab next to. Then that changed and I was pointed to the New tab next to current add-on. But that was a long long time ago. As to not using the ERS I don't like to fix things that are not broken. When I get the chance I will ask for some help creating a new iteration of FF to make sure it won't cause problems. I'll want to create a path back to where I'm at now. I installed version 1.1.5 and that has fixed the problem ( so far ). Thanks for the Help

I am not familiar with how iMacros interacts with Firefox, so I don't know why it works differently than human hands.

I also have no idea what iMacros is. I showed you that because sblask referred to an issue ( 26 ) on his page. That's where I found the fix that dingdingdon referred to, using version 1,1,5. So I tried 1.1.5 and it worked.

I misunderstood where you description left off and the other poster's description began, so never mind on the iMacros.

But about your Firefox version, Mozilla considers Firefox 51 broken because it contains known security vulnerabilities that were fixed in Firefox 52. https://www.mozilla.org/security/known-vulnerabilities/firefox/#firefox52

The latest and last release of Firefox for Windows XP -- your Firefox reported it is running on Windows XP -- is the Extended Support Release (ESR) of Firefox 52 (Installers -- above the list on the right side, click Firefox 52). You should at least download the installer now before it reaches its end-of-life next month.

jscher2000 said

But about your Firefox version, Mozilla considers Firefox 51 broken because it contains known security vulnerabilities that were fixed in Firefox 52. https://www.mozilla.org/security/known-vulnerabilities/firefox/#firefox52 The latest and last release of Firefox for Windows XP -- your Firefox reported it is running on Windows XP -- is the Extended Support Release (ESR) of Firefox 52 (Installers -- above the list on the right side, click Firefox 52). You should at least download the installer now before it reaches its end-of-life next month.

These terms for the people not failure with them "Fully localized versions" and "installer" are scary. But I bit the bullet and clicked the download button for the "Fully localized version". So now I have the FF 52.9.0 ers.exe saved. know If you are sure that it won't cause any problems with my add-ons and is not going to change the interface then I'll run it. I would rather put my old copy in a safe file and install the ERS as a new stand alone. If I'm satisfied I will upgrade and loose the ERS. Better still I would like to be able to create different stand alone FF iterations. When you open a new window now it is part of the behemoth FF. The FF behemoth crashes frequiently. And when the windows are closed all the tabs disappear that were on that window. A different iteration would save the tabs on close. So I could have for instance one FF for research and another for commerce. Can This be done? I'll ask how later.

Hi DavidSorge, as you can imagine, I can't assure you of smooth sailing without testing your system, since everyone's is different.

Better still I would like to be able to create different stand alone FF iterations. When you open a new window now it is part of the behemoth FF. The FF behemoth crashes frequiently. And when the windows are closed all the tabs disappear that were on that window. A different iteration would save the tabs on close. So I could have for instance one FF for research and another for commerce. Can This be done? I'll ask how later.

Firefox remembers the last three closed windows. Use the History menu, Recently Closed Windows, to recover any of those.

The other issues could be addressed in a new thread. But if you don't already, you may want to use the built-in "Bookmark All Tabs" feature or the Session Manager (legacy) extension to captures sets of tabs for later re-opening: https://addons.mozilla.org/firefox/addon/session-manager/

I'll start a new thread on the open several stand alone Firefox's issue. The Open tab next to current version 1.1.5 is working fine.