Oh, thanks! I recalled reading that nightlies shouldn't be unzipped over releases, but I hadn't realized that it wasn't recommended to unzip nightlies on top of each other.
Is it OK to save the profile file(s) somewhere, delete the whole Mozilla tree, unzip another version, then copy the profile file(s) back? -=- Alan Henry Sobotka wrote: > > As a rule, you should always install afresh. Even keeping a profile can > mess things up because the default files used to create one may have > changed. Installing on top of the old only works when the list of files > in the new version exactly matches the list in the old, so that > everything gets overwritten. Problems arise when files in the old > version are not part of the new because they don't get overwritten; in > the case of components, that means they get registered and you enter the > twilight zone of undefined behavior. > > h~
