howcanigetmyoldfirefoxback

2017年11月14日—First;Typeabout:preferences#advancedintheaddressbar.UnderAdvanced,SelectUpdate.Checkthesettings.Alsoturn ...,IfyouneedtocreateanewFirefoxprofile,findouthowtorecoveryouroldFirefoxdatasuchasbookmarks,historyandpasswords.,2021年4月21日—MakeabackupofyourProfilesfolder.·DownloadtheversionofFirefoxyouwant.·UninstallFirefox.·Reboot.·InstallyourchosenFirefox ...,2017年11月1...

參考資訊如下
How can I get my old Firefox browser back?

2017年11月14日 — First; Type about:preferences#advanced<enter> in the address bar. Under Advanced, Select Update. Check the settings. Also turn ...

Recovering important data from an old profile

If you need to create a new Firefox profile, find out how to recover your old Firefox data such as bookmarks, history and passwords.

How do I revert Firefox to a previous version and keep my ...

2021年4月21日 — Make a backup of your Profiles folder. · Download the version of Firefox you want. · Uninstall Firefox. · Reboot. · Install your chosen Firefox ...

Restore previous version

2017年11月16日 — First, Type about:preferences#advanced<enter> in the address bar. Under Advanced, Select Update. [v57+] Type about:preferences#general<enter> in ...

How to Downgrade Firefox

2021年4月30日 — This wikiHow teaches you how to return to an older version of the Firefox web browser on your computer. Mozilla, the organization that ...

Restore old version of Firefox and profile

2020年6月2日 — Right-click the backup location (e.g. a USB-stick or a blank CD-RW disc), and select Paste.

Back up and restore information in Firefox profiles

Note: The Refresh Firefox feature creates an Old Firefox Data folder on your desktop, which contains a backup of your old profile folder and its contents.

How to downgradedownload to older versions of Firefox

2022年11月21日 — Method 1: Download older versions directly from Mozilla · Launch the older Firefox version you just downloaded. · Click on the hamburger menu ...

How to restore Firefox to the previous (or install older) version

Install an older version of Firefox

Downgrading to a previous Firefox version doesn't solve most problems. This article links to older versions and provides some alternatives.