You can't override signing any longer with Release or Beta versions, and it has been that way since Firefox 48.

The developer of each extension determines which versions of Firefox their product is compatible with. As far as extensions like LastPass, the manner in which those types extensions are coded require them to be updated for every new Firefox Release. And some of them don't seem to be updated in a timely manner; we have gotten reports of weeks passing by with a few of those types of extensions not being updated.

The LastPass extension is signed (there is a META-INF folder), so that shouldn't prevent installing. Whether the extension works in the current release is something different,

• https://lastpass.com/misc_download2.php?tab=windows&anchor=ff

It does install, and will work until I restart and then FF disables it. Hence the multiple installs. Each and every time FF restarts I get the message that FF has disabled unsigned add-ons. It has only done this since the last few major version updates of FF.

Okay, so based on what you say I can no longer force FF to accept unsigned add-ons. This has been going on for months now so LastPass has had plenty of time to sign the correct version of FF. I also gather that FF isn't going to let me run what I want to run. My friends use LastPass with Chrome without issues. If you have any suggestions I'm open, otherwise I guess I have no choice but to change browsers?

I use Win 7 (both 32- and 64-bit) Pro SP 1

Before continuing, note well: LastPass continues to work properly in, e.g.: Brave, Chrome, IE, Opera, etc. The problem is with Firefox, not with LastPass. If LastPass works properly with other browsers commonly in use, and fails to work with Firefox, identifying the source of the problem is obvious. (hint: It's not LastPass.)

Onward.

I had been successfully using LastPass (v 4.1.62, installed from Firefox's "add-ons" panel) with Firefox (v 54.0.1). I updated Firefox to v 55.0.2. LastPass failed to work properly, so I attempted to revert to Firefox v 54.0.1 in which LastPass now no longer works properly. ("No longer works properly": log-in status and other preferences aren't stored.)

Emphasizing: the problem isn't with LastPass, which functions properly in other popular browsers; the problem is with Firefox.

Understand well: it's the add-ons and extensions that lend Firefox its functionality. If I lose that functionality (and apparently, that's the direction in which Firefox is headed), I'll use another browser, as I am. Right now.

I am appalled at the very aggressive and argumentative nature of some of questions asked of Firefox, on these Pages. This is a very special browser which I find invaluable. Sometimes everything is not perfect but that is the experimental and developing nature of the whole concept. I find it very disingenuous that someone can "threaten" to use another browser. That is your choice, anyway. If you are not one of the millions of FF users who think that FF is special then just go away, and use another browser. Those who remain are true supporters of the "FREE WEB" concept and are well prepared to accept the odd glitch for whatever reason.

Just think how appalled users are when they cannot log into sites and are downloading LastPass for the fifth, sixth in one day. They are sitting in classes, meetings running small businesses instead of logging into sites they are yet again downloading LastPass. People are angry because the problem is random it pops up out of the blue at the worst times. I have gone weeks even months everything seems fine believing the solution has worked. I log off my laptop I’m sitting in class I go to log into the class site and LastPass is gone. After multiple clean installs of FF, reinstalling add-ons, going back and forth with support for hours. Everyone knows and accepts the fact nothing is perfect but after a year one would think there would be a solution to the problem. I have made the same comments to LastPass and FF after having to reinstall FF and all my add-ons while in the middle of writing a paper. It’s hard being nonchalant when one has spent many hours for well over a year with a problem we were told was fixed. If we reset FF so they have spent hours reinstalling addons two weeks or a month or two later they logon then open FF and LastPass is missing yet again. Simply logging into another browser is not always an option FF is the suggested browser for some college software. Labs do not load or work properly in other browsers. The same way certain software will not run without Adobe, you cannot substitute using another PDF reader There is a high level of frustration because the users feel FF and LastPass are special that’s why we pay for LastPass. I am a true Mozilla supporter but I am not willing to accept an odd glitch that’s over a year old I’ve been with FF for 12yrs, have paid for LastPass for 9yrs. People are frustrated use FF for more than surfing the web. This little glitch is costing people both time and in some cases money. Switching browsers is a complicated, time-consuming process that’s easier said than done. They threaten to leave because they are at the end of their rope. They are not being disingenuous many will consider switching and find they can’t. You don’t seem to understand even with “experimental and developing nature of the whole concept” as you put it software is written and developed with FF in mind, it is the preferred browser at my college. People are frustrated.

LastPass stopped working weeks ago (Firefox v., 56.0) --- tried reinstalling but that didn't help.

I disabled Better Privacy and LastPass started working again.

So I am not sure if the problem is actually with the browser, or the Better Privacy add-on.

Since this is Day One without BP I can't say for sure I have fixed LastPass.

Look Firefox, look! A shark! Jump, Firefox, jump!