By default, the forum will always post info assuming Windows OS unless the postee mentions they require info for a different OS. You did not mention what OS you are using. But getting 'Profile Manager' to start does depend upon OS. Adding this part (-allow-downgrade) bypasses downgrade protection. Depending on changes between the two versions, some files in a profile may not be downwards compatible. The downgrade protection brought in from version 68 prevents accidentally starting Thunderbird in a profile running a later version of Thunderbird. Start Profile Manager (thunderbird -P) allows you to select a specific profile when starting Thunderbird. Thats how you start Thunderbird the first time after installing the program, but only if downgrading. Re : where does the "thunderbird -P -allow-downgrade" come in? The tilde character (~) refers to the current user's Home folder, so ~/Library is the /Macintosh HD/Users//Library folder. However, if you're using a third party build from Debian or Ubuntu, those builds store your profile folder here: C:\Users\\AppData\Roaming\ Thunderbird\.Assuming everything is in the default location, copy the 'Thunderbird' folder as shown below in bold font it varies depending upon OS. However, what you may experience is the old profile may not be located and a new profile is created, so in effect you have more than one profile and TB is using the wrong one. But making a backup is always a good idea regardless.
Otherwise, every update would delete everything. Uninstalling and reinstalling the program should not effect the profile folders, because they are stored in different locations. If you desire a different - older than current release, you can use this link: In which case you use the main default location: If you are using a beta, then you may want to downgrade to the current release version (as per the original question by postee). not easy to find.ĭepends upon what version you are wanting to downgrade to.
Re : download the program from somewhere- have to search online for that. The Beta version is doing weird things, when you click on INBOX, it doesn't update the inbox list, you have to run the mouse arrow over it before it updates the screen. But you have to document this process FIRST!! Where does the "thunderbird -P -allow-downgrade" come in?ĭo you mean " thunderbird.exe -P -allow-downgrade"? or what?ģ) how do you get your contacts/dist lists back? what is the process?Ĥ) I would be happy to donate $$ for support. Most of my mail accounts are IMAP so I can get those back, but POP3 accounts are wiped clean.lĢ) once you get it, you run the program, and it overwrites your present version. I have folders where I keep old emails, that gets overwritten TOO!!! Basically just wipes it out. You can send a rocket to the moon, but can't document a process. ( I agree with a previous statement, you should make this easier to find. Profile=contacts Note: this information is not easy to find, took two days to find it. not easy to find.ġb) copy your profile to to a safe place, because if you don't the new program will OVERWRITE it!! ( downgrade or go to 64 bit)ġ) download the program from somewhere- have to search online for that. So I'd like to some of the process to downgrade on paper. Will this happen? Or will the release version ALWAYS warn about loading a beta profile, even if it's in a very old format? So the release version will be able to load the old beta profile without any warnings. year 2020 will be NEWER than the beta version of 2019, all features of the 2019 beta should have been included in the 2020 release. In my situation, the release version of TB refused to load the beta profile because it detects that it is newer and there is the possibility that it contains new features unsupported in the release version.īut when time passes and the development of the release version goes forward, soon or later the release version of e.g. Let's forget about -allow-downgrade, let's suppose it does not exist - or maybe we do not want to use it to be on the safe side and prevent profile corruption. Wayne, what you write is correct, after using -allow-downgrade I can start TB normally, the profile is now definitely downgraded.