1. Back up your profile directory (just in case).Inquiring wrote:Is there a way to roll back the update?
2. Download whichever older version you want from here: http://www.palemoon.org/archived.shtml
3. Uninstall Pale Moon (but do not delete your profile/data files).
4. Install the older version that you downloaded.
HOWEVER: Since you're already running PM 28, do not go back to an earlier milestone (anything before PM 28.0.0). Reinstalling PM 27 or less on a profile that has already been upgraded to PM 28 will cause problems (and possible file corruption) due to various incompatibilities. Also keep in mind that earlier versions will not receive the same level of support here as the current version does.