My first question would be exactly how and when did you update to 47.0.1 ? That version was released almost 2 months ago. Did it come directly from Mozilla? Makes me wonder if you somehow got FF from an unreliable third-party that somehow sabotaged it. Second, I'm concerned about "all my add-ons". If you can't remember them, it could make this harder to solve. I've only ever used two, and both work great...but you have to remember that too much of anything isn't always a good thing. FF add-ons come from multiple third-parties and while it is hoped that all can co-exist, no one offers a guarantee that they will or that they will be supported when the next version of FF comes down the pike.

You might want to read the reviews for Scrapbook (and Scrapbook Plus)...some are not very complimentary. While never using Scrapbook myself, for the one or two times that I've wanted to save an entire web page, using SAVE PAGE AS from the FILE menu worked well enough for me as long as I wasn't concerned with saving images. YMMV.

Current Firefox version (for Windows OS, can't say about the others) is 48.0.2.

Sounds like this person has to much of everything including virus and or maleware software, your PC must be so darn confused it's a wonder it doesn't implode!

Actually, aputernut, I *do not* have too much of everything, but when, on occasion, I use Malwarebytes antimalware or MSE, I install, use, and then immediately uninstall them, because I have found, to use your words, that they "confuse" my PC if I let them remain. "House Call," which doesn't seem to cause problems, I keep in my PC, and rarely use it. And of course, when running another such program, I temporarily disable my resident anti-virus AVG.

In this instance, I had a legitimate concern about viruses, having opened a bogus email that disappeared as soon as I had read it, without my clicking on anything in it, which led to my doing a bit of investigating. It may be that in spite of getting an all-clear from 4 different programs, my PC still does have a virus. I'm hoping not.

Kudzu9: That's a good suggestion. I'll try uninstalling and reinstalling FF, 48.0.2. And I do have a list of sorts that I can go by to reinstall my Add-ons, since my husband's computer has the same ones I did. Next time, I'll keep my own list, though, because, who knows, HIS PC could someday have the same problem mine does.

Azinoh: That's news to me. Not sure when I updated FF. In fact, I thought I had done so several weeks ago, but then got a notice that it needed updating, so went ahead again. Wow, it's beginning to look more and more as if something is seriously wrong somewhere.

FF has always been unreliable in its updating on my PC. (Perhaps a sign of a deeper problem somewhere.) I have it set to automatically update, and presume that the updates were coming from Mozilla, but it has been erratic in doing so. "Help>about FF" leads to a box that says "FireFox is up to date." Now, obviously a lie, but I believed it.

I will reconsider the number of add-ons I have. The main ones were a pop-up blocker and IE View lite. Some, I know, I installed because a site I wanted to see required them (or it?), but when possible, I had set things so that the add-ons I didn't need often were temporarily disabled and had to ask permission.

This is the second time I have had trouble with Scrapbook. I will definitely go check out the reviews of it; never did that, though I always check reviews before buying things! Hm. What I like about Scrapbook is that even if a site disappears from the Internet, whatever you have saved in Scrapbook is still accessible. With very important info, I generally copy and paste it into Word and save it as a document, but that is tedious.

I appreciate all the comments and help and will post again re new developments.

Thanks! I am thrilled: Uninstalling FF and installing 48.0.2 solved both the Add-on and Scrapbook problems. All my Add-ons are back. I thought they were gone forever. Turns out the ones I had enabled were only Adblock Plus, Colorful tabs, and X-marks, which has saved me from losing my bookmarks several times. This version of FF even lets me get back the Appearance "Red cats (blue flavor)" that I used to enjoy before an FF update disabled it.

By the way, how can I get to the unfavorable reviews of Scrapbook that you mention, Azinoh? In about 10 minutes, all I could find seemed to have an interest in praising it. (I know some of the search engines are skewed.)

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Hmm, another look at my Extensions just revealed that I also had/have InformEnter, which I use the most often, and Open in IE; Scrapbook, too, of course.

https://addons.mozilla.org/en-US/firefox/

Use this page to search for Scrapbook (or Plus), then click to read the reviews.

Just as a precaution I suggest you use the export function in Firefox to save your bookmarks to a thumb drive. It takes about 10 seconds, and then they will be safe in case you ever have problems with Firefox, X-marks, or your hard drive crashing.

Thanks, Azihoh, I checked out a lot of them the way you said; for my simple purposes, I guess it will still be all right, but I'd better learn how to back it up, if that is possible.

And thanks to Kudzu9, as well. I followed the directions to export and saved all the bookmarks to a file in My documents (saving them to a thumb drive, too), but when clicked, it comes up in the browser as a long list of blue links that would be hard to use. If I should lose all my bookmarks, what could I do to get them back into the Bookmarks toolbar?

If you lose the bookmarks, you do the reverse: you go into the browser and import them. They aren't meant to be used in the form you looked at them. They are just a backup file that puts them into your browser. Also, if you get a new computer some time, you can install Firefox and then use that bookmark file to add all the bookmarks to it.

Thanks so much. I get it now.

Firefox on all my Win7 systems auto-updated to 48.0.2. Checked the parents' Win10 this afternoon. It was still 47.0.1 and would not auto-update, although FF advised it's out-of-date when I checked Tools / Add-Ons. It still wouldn't auto-update so I downloaded/installed 48.0.2 manually.

That's interesting. I have no idea why mine has not been auto-updating, but from now on, I'm going to keep checking on it and doing it manually if it can't be trusted.

Mine has not up dated either. I'd say the Firefox Up-Date servers may be down for what ever reason.