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How do I uninstall Firefox Quantum and re-install the previous version of Firefox so I can get rid of all of the new "unwanted clutter"?

How do I uninstall Firefox Quantum and re-install the previous version of Firefox so I can get rid of all of the new "unwanted clutter"?

Chosen solution

Hi, try switching to ESR, you can download it from here:

https://www.mozilla.org/en-US/firefox/organizations/all/

Firefox 52 ESR will be supported with security back ports and updates until May 2018.

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Additional System Details

Installed Plug-ins

  • Shockwave Flash 27.0 r0

Application

  • Firefox 57.0
  • User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:57.0) Gecko/20100101 Firefox/57.0
  • Support URL: https://support.mozilla.org/1/firefox/57.0/WINNT/en-US/

Extensions

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Javascript

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  • windowLayerManagerRemote: True
  • windowLayerManagerType: Direct3D 11
  • windowUsingAdvancedLayers: True

Modified Preferences

Misc

  • User JS: No
  • Accessibility: No
Mkll
  • Top 10 Contributor
255 solutions 1631 answers

Chosen Solution

Hi, try switching to ESR, you can download it from here:

https://www.mozilla.org/en-US/firefox/organizations/all/

Firefox 52 ESR will be supported with security back ports and updates until May 2018.

Hi, try switching to ESR, you can download it from here: https://www.mozilla.org/en-US/firefox/organizations/all/ Firefox 52 ESR will be supported with security back ports and updates until May 2018.
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Question owner

Thank you Mkll

Thank you Mkll
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Justme69 0 solutions 2 answers

typo so see below

typo so see below

Modified by Justme69

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Justme69 0 solutions 2 answers

Helpful Reply

why did Firefox automatically update to Quantum. Very clandestine and also I hate Quantum. Tried for days and still can't find all my links and data. It is awful. And I never, ever requested it, authorized it or wanted it. Now I have it, I want to get shot of it.

why did Firefox automatically update to Quantum. Very clandestine and also I hate Quantum. Tried for days and still can't find all my links and data. It is awful. And I never, ever requested it, authorized it or wanted it. Now I have it, I want to get shot of it.
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jclarkw 1 solutions 33 answers

Helpful Reply

Here's a link to download any previous version of Firefox. It also shows how to prevent automatic updates in the future.

https://support.mozilla.org/en-US/kb/install-older-version-of-firefox

I just want to go back to 56.0.2 (x64), at least until some more of the problems are worked out AND NoScript has a version that will run on Quantum! -- jclarkw

Here's a link to download any previous version of Firefox. It also shows how to prevent automatic updates in the future. https://support.mozilla.org/en-US/kb/install-older-version-of-firefox I just want to go back to 56.0.2 (x64), at least until some more of the problems are worked out AND NoScript has a version that will run on Quantum! -- jclarkw

Modified by jclarkw

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jclarkw 1 solutions 33 answers

Mkll said

Hi, try switching to ESR, you can download it from here: https://www.mozilla.org/en-US/firefox/organizations/all/ Firefox 52 ESR will be supported with security back ports and updates until May 2018.

Why install ESR instead of just downloading the previous version, 56.0.2 (see previous message for a link)? ESR seems a considerable pain to manage for personal use, especially if you don't expect to need the older version for very long... -- jclarkw

''Mkll [[#answer-1027946|said]]'' <blockquote> Hi, try switching to ESR, you can download it from here: https://www.mozilla.org/en-US/firefox/organizations/all/ Firefox 52 ESR will be supported with security back ports and updates until May 2018. </blockquote> Why install ESR instead of just downloading the previous version, 56.0.2 (see previous message for a link)? ESR seems a considerable pain to manage for personal use, especially if you don't expect to need the older version for very long... -- jclarkw
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bigfox 1 solutions 21 answers

Mkll said

Hi, try switching to ESR, you can download it from here: https://www.mozilla.org/en-US/firefox/organizations/all/ Firefox 52 ESR will be supported with security back ports and updates until May 2018.

Please provide me step by step on how to go back to Firefox ESR from Quantum? (from start to end)? (I am afraid that I will corrupt anything so I am asking for step by step.)

Other questions 1. Do I need to uninstall Firefox Quantum first, then install Firefox ESR? 2. When I uninstall Quantum, will my bookmarks/addons be uninstalled/deleted? 3. What are the things to do after installing Firefox ESR to make it look the same (bookmarks/addons...) as the version before Quantum? 4. Can I have Firefox Quantum and Firefox ESR together on the same PC? Will using them together mess up the profile or will they share the same profile (bookmarks/addons...)

Thanks a lot. Appreciate your help.

''Mkll [[#answer-1027946|said]]'' <blockquote> Hi, try switching to ESR, you can download it from here: https://www.mozilla.org/en-US/firefox/organizations/all/ Firefox 52 ESR will be supported with security back ports and updates until May 2018. </blockquote> Please provide me step by step on how to go back to Firefox ESR from Quantum? (from start to end)? (I am afraid that I will corrupt anything so I am asking for step by step.) Other questions 1. Do I need to uninstall Firefox Quantum first, then install Firefox ESR? 2. When I uninstall Quantum, will my bookmarks/addons be uninstalled/deleted? 3. What are the things to do after installing Firefox ESR to make it look the same (bookmarks/addons...) as the version before Quantum? 4. Can I have Firefox Quantum and Firefox ESR together on the same PC? Will using them together mess up the profile or will they share the same profile (bookmarks/addons...) Thanks a lot. Appreciate your help.
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joaoserpa 0 solutions 1 answers

will dowloading the previous versions delete my preferences, saved passwords and so on? If it does, then I'll use any other browser and ditch Firefox for good — this latest version is quite bad

will dowloading the previous versions delete my preferences, saved passwords and so on? If it does, then I'll use any other browser and ditch Firefox for good — this latest version is quite bad
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bigfox 1 solutions 21 answers

I have uninstalled Firefox 57 (Quantum) and installed Firefox ESR but some addons e.g "session manger' do not work in ESR, so I uninstalled ESR and installed 56.0.2 and it works.

These are the steps I did in my Windows 10 to revert to older version. 1 In the address bar type about:preferences#general then press <enter>, then at the 'Allow Firefox to' heading select this [Never check for updates]. Unselect [Use a background service to install updates]. 2 (optional, just in case something goes wrong) Backup profile folder by following the [Backing up your profile] section steps at https://support.mozilla.org/en-US/kb/back-and-restore-information-firefox-profiles 3 In windows 'add or remove programs', uninstall Mozilla Firefox 4 Download 56.0.2 from https://ftp.mozilla.org/pub/firefox/releases/56.0.2/ (or other older versions from https://ftp.mozilla.org/pub/firefox/releases/ ) 5 Disconnect from the internet (unplug ethernet cable) 6 Install 56.0.2 7 Open Firefox 56.0.2 and do this step. In the address bar type about:preferences#general then press <enter>, then at the 'Allow Firefox to' heading select this [Never check for updates]. Unselect [Use a background service to install updates]. 8 If bookmarks does not appear, follow the restore steps here https://support.mozilla.org/en-US/kb/restore-bookmarks-from-backup-or-move-them 9 Connect to internet. 10 Done, everything should be working fine now, just like before Firefox 57 was installed.

I have uninstalled Firefox 57 (Quantum) and installed Firefox ESR but some addons e.g "session manger' do not work in ESR, so I uninstalled ESR and installed 56.0.2 and it works. These are the steps I did in my Windows 10 to revert to older version. 1 In the address bar type about:preferences#general then press <enter>, then at the 'Allow Firefox to' heading select this [Never check for updates]. Unselect [Use a background service to install updates]. 2 (optional, just in case something goes wrong) Backup profile folder by following the [Backing up your profile] section steps at https://support.mozilla.org/en-US/kb/back-and-restore-information-firefox-profiles 3 In windows 'add or remove programs', uninstall Mozilla Firefox 4 Download 56.0.2 from https://ftp.mozilla.org/pub/firefox/releases/56.0.2/ (or other older versions from https://ftp.mozilla.org/pub/firefox/releases/ ) 5 Disconnect from the internet (unplug ethernet cable) 6 Install 56.0.2 7 Open Firefox 56.0.2 and do this step. In the address bar type about:preferences#general then press <enter>, then at the 'Allow Firefox to' heading select this [Never check for updates]. Unselect [Use a background service to install updates]. 8 If bookmarks does not appear, follow the restore steps here https://support.mozilla.org/en-US/kb/restore-bookmarks-from-backup-or-move-them 9 Connect to internet. 10 Done, everything should be working fine now, just like before Firefox 57 was installed.

Modified by bigfox

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Lancer525 1 solutions 28 answers

I have Windows7, and I want to get rid of the abomination that Quantum is. All of my add ons are gone, and I can't even view a YouTube video.

Nothing works, all my saved passwords are gone, FEBE backup is gone, along with several security things I had.

Please, can someone give detailed, step-by-step instructions on how to revert to the previous version, for a complete n00b user like me?

Please?

I have Windows7, and I want to get rid of the abomination that Quantum is. All of my add ons are gone, and I can't even view a YouTube video. Nothing works, all my saved passwords are gone, FEBE backup is gone, along with several security things I had. Please, can someone give detailed, step-by-step instructions on how to revert to the previous version, for a complete n00b user like me? Please?
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James
  • Top 25 Contributor
  • Moderator
1294 solutions 8970 answers

jclarkw said

I just want to go back to 56.0.2 (x64), at least until some more of the problems are worked out AND NoScript has a version that will run on Quantum! -- jclarkw

If NoScript is one of your main reasons for not using Firefox 57 then the author has a new update.

The new webextension version of NoScript for Firefox 57 is now out https://addons.mozilla.org/firefox/addon/noscript/

https://hackademix.net/2017/11/21/noscript-1011-quantum-powerball-finish-and-rebooting/

''jclarkw [[#answer-1031491|said]]'' <blockquote>I just want to go back to 56.0.2 (x64), at least until some more of the problems are worked out AND NoScript has a version that will run on Quantum! -- jclarkw </blockquote> If NoScript is one of your main reasons for not using Firefox 57 then the author has a new update. The new webextension version of NoScript for Firefox 57 is now out https://addons.mozilla.org/firefox/addon/noscript/ https://hackademix.net/2017/11/21/noscript-1011-quantum-powerball-finish-and-rebooting/

Modified by James

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Lancer525 1 solutions 28 answers

Well, this is not my sole reason.

My reason is that every add-on, setting, password, link, and backup is no longer there.

This was the absolute worst thing that could have been done, and done completely without my permission, and I would really like to know how to undo it.

Well, this is not my sole reason. My reason is that '''every''' add-on, setting, password, link, and backup is no longer there. This was the absolute worst thing that could have been done, and done '''completely without my permission''', and I would really like to know how to '''undo''' it.
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bigfox 1 solutions 21 answers

Lancer525, you might want to try the 10 steps I posted above. I uninstalled Firefox 57 Quantum and installed 56.0.2 successfully and everything works (including addons) just like when I was using the previous version 56.0.2. Many addons are not compatible with Quantum yet and maybe that is the reason why some of your stuff is missing or do not work.

Lancer525, you might want to try the 10 steps I posted above. I uninstalled Firefox 57 Quantum and installed 56.0.2 successfully and everything works (including addons) just like when I was using the previous version 56.0.2. Many addons are not compatible with Quantum yet and maybe that is the reason why some of your stuff is missing or do not work.
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Lancer525 1 solutions 28 answers

Sorry, I didn't see the "ten steps above" post. I'll go look for it.

Sorry, I didn't see the "ten steps above" post. I'll go look for it.
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Lancer525 1 solutions 28 answers

You have Windows 10. I have Windows 7.

Will these same steps work? Will I still have to disconnect from the Internet?

Thanks!

You have Windows 10. I have Windows 7. Will these same steps work? Will I still have to disconnect from the Internet? Thanks!
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bigfox 1 solutions 21 answers

Windows 7 should work too. You should disconnect from the internet if possible. The purpose of disconnecting from the internet in step 5 is to prevent step 7 once you open the older version of Firefox 56.0.2, it may auto connect to the internet to update to the newer version of Firefox and auto update to Firefox 57, before you have the time to complete step 7 to disable auto update. I am not sure what are the default update settings, so I disconnect internet first then open firefox to disable auto update then connect to internet.

Windows 7 should work too. You should disconnect from the internet if possible. The purpose of disconnecting from the internet in step 5 is to prevent step 7 once you open the older version of Firefox 56.0.2, it may auto connect to the internet to update to the newer version of Firefox and auto update to Firefox 57, before you have the time to complete step 7 to disable auto update. I am not sure what are the default update settings, so I disconnect internet first then open firefox to disable auto update then connect to internet.

Modified by bigfox

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autolycus 0 solutions 4 answers

Anyone successfully used the 10 steps in win7?

I've tried hard to get on with 57 but it is so appallingly bad in function and appearance. Pages are slow to open. Sometimes they don't open at all. Sometimes they open but the page is blank. (copy and paste same url in opera or IE it's fine.) Sometimes i have to press the link 2-3 times before it opens a tab that actually displays the page. Whoever decided that working folders should be grey?! There's not enough title bar to grab to move a window...

I'll try it again in a few months and if it's not fundamentally improved i'll go back to chrome or opera as my main browser.

Anyone successfully used the 10 steps in win7? I've tried hard to get on with 57 but it is so appallingly bad in function and appearance. Pages are slow to open. Sometimes they don't open at all. Sometimes they open but the page is blank. (copy and paste same url in opera or IE it's fine.) Sometimes i have to press the link 2-3 times before it opens a tab that actually displays the page. Whoever decided that working folders should be grey?! There's not enough title bar to grab to move a window... I'll try it again in a few months and if it's not fundamentally improved i'll go back to chrome or opera as my main browser.

Modified by autolycus

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