For absolutely no reason FF suddenly shifts all my browser windows putting my FIRST choice to the END. How do I stop this
The Reset Firefox feature can fix many issues by restoring Firefox to its factory default state while saving your essential information. Note: This will cause you to lose any Extensions, Open websites, and some Preferences.
To Reset Firefox do the following:
Further information can be found in the Refresh Firefox - reset add-ons and settings article.
Did this fix your problems? Please report back to us!
I did that a couple of years ago and it hasn't fixed the problem I have so far.
The problem does seem to have gotten worse with the last 2 upgrades.
Please create a screenshot of the problem you're seeing by following the guide mentioned at How do I create a screenshot of my problem?.
Once you've done this, attach the saved screenshot file to your forum post by clicking the Browse... button below the Post your reply box. This will help us to visualize the problem.
How can I get a screen shot of a moved browser window? What exactly would tell you that what used to be in the first slot is now in the last slot?
May be its Addons Problem Try safemode
Try the Firefox Safe Mode to see how it works there. The Safe Mode is a troubleshooting mode, which disables most add-ons.
(If you're not using it, switch to the Default theme.)
Don't select anything right now, just use "'Start in Safe Mode" To exit the Firefox Safe Mode, just close Firefox and wait a few seconds before using the Firefox shortcut (without the Shift key) to open it again. If it is good in the Firefox Safe Mode, your problem is probably caused by an extension, and you need to figure out which one.
Please follow the Troubleshoot extensions, themes and hardware acceleration issues to solve common Firefox problems article for that.
When you figure out what's causing your issues, please let us know. It might help other users who have the same problem.
Are you talking about the 9 slots on the about:newtab page?
See this article about the New Tab page (about:newtab):
You can change the order of the boxes on the about:newtab page and drag an item to a different slot to pin it to that position or you can remove a website by clicking the close X to block that URL.
You can drag a bookmark or history item and drop them in a slot on the about:newtab page to pin them and have your own favorites sites showing.
Changes manually made on the about:newtab page are stored in the chromeappsstore.sqlite file in the Firefox Profile Folder under the pinnedLinks key and blockedLinks key (this will change to using prefs in Firefox 20; Bug 791447)).