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To replace ESR ver. 60.0.1 x64 on my laptop with earlier ESR v.52.9 x32 as i use most (on desktop), can I simply run the installer for 52.9 on the laptop? W7

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  • 12 views
  • Last reply by cor-el

GuyinCM
GuyinCM
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ESR 52.9 is current on my desktop (and I like that it still supports ReminderFox). When I updated my seldom-used laptop to ESR, I was surprised that it installed 59.x ESR. Both PCs are on Windows 7 x64 by choice. The installer I just downloaded for desktop update is for ESR 52.9 x32; I copied it to try to install over the laptop's v.60.0 x32, IF that seems feasible without any big hitch.

Side question , if that results in two versions on the laptop, would the Firefox uninstaller allow choosing which ver to uninstall?

ESR 52.9 is current on my desktop (and I like that it still supports ReminderFox). When I updated my seldom-used laptop to ESR, I was surprised that it installed 59.x ESR. Both PCs are on Windows 7 x64 by choice. The installer I just downloaded for desktop update is for ESR 52.9 x32; I copied it to try to install over the laptop's v.60.0 x32, IF that seems feasible without any big hitch. Side question , if that results in two versions on the laptop, would the Firefox uninstaller allow choosing which ver to uninstall?

All Replies (3)

Shadow110
Shadow110
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Separate Security Issue, please update your Flash 28.0 r0 Flash Player Version: 30.0.0.113 Current Version https://get.adobe.com/flashplayer/otherversions/ Step 1: Select Operating System Step 2: Select A Version (Firefox, . . . .) Note: Other software is offered in the download. <Windows Only>

Hi, no, you will muck things up big time. 1 or the other or pick another hardrive for the 2nd 1 or use Developer Edition as it has a compatibility mode.

Backup just in case and always :

uninstall Firefox. Then Delete the Mozilla Firefox Folders in C:\Program Files , C:\Program Files(x86) & C:\ProgramData 

esr   52.9 & 61    x32 and  x 64

If want regular release ver 61 only.

Please let us know if this solved your issue or if need further assistance.

jscher2000 - Support Volunteer
jscher2000 - Support Volunteer
  • Top 25 Contributor
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The main hitch is likely to be losing your history and bookmarks due to a database format change. If you were running 52 ESR up to the moment you installed 60 ESR, Firefox still should have bookmark backups you could restore.

Some articles you might need:

cor-el
cor-el
  • Moderator
  • Top 10 Contributor
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You posted with a Windows XP user agent

  • User Agent: Mozilla/5.0 (Windows NT 5.1; WOW64; rv:52.0) Gecko/20100101 Firefox/52.0

I assume you still use XP on your desktop. If that isn't the case then check via the properties that you do not run Firefox in compatibility mode.

Note that you should create a new profile when you downgrade from Firefox 60 to Firefox 52 to avoid serious issues with bookmarks and local storage as the most prominent. There are also changes to the password files (logins.json and key4.db versus logins.json and key3.db) and the certificate store (cert9.db versus cert8.db) in Firefox 60.

See: