I followed [[Profiles - Where Thunderbird stores your messages and other user data|Mozilla's official instructions]] for transferring and Thunderbird profile to a new device (running Fedora 40 and Thunderbird version 115). Thunderbird seemed to read my profiles folder correctly, as all my accounts and RSS feeds were present after I copied the old profile to folder to my new .thunderbird directory. However, after downloading the header files for the emails I have received since switching computers, it then tries to download all 60,000 emails or so on my gmail account even though most of these emails should be included in the profile folder already - it looks like have 6 GB INBOX file within this profile. Is there a way to get thunderbird to read the profile without redownloading all the messages from my accounts? I unfortunately no longer have access to my old windows machine that this profile is from, just the profile folder itself. Let me know if there is anything I can do!