The subject line adequately states the problem; if I'd known I'd have all this space to elaborate, I wouldn't have spent an hour getting the problem statement down to 155 characters! I attach an image of the top left of my Thunderbird screen, which is pointless if your image is as small as mine. The tab shows as "Inbox" but the left pane that I'm used to, showing the other local folders, isn't there. As described on the subject line, I can get to any other local folder by successively clicking on Go > Folder > Local Folders > Inbox (or Sent, or whatever), but that's four clicks when one used to suffice. I suppose I could learn to click first on Go (rather than View, say), but it's still a nuisance. I reached this web page from Help on the Thunderbird screen; the expedition went > https://support.mozilla.org/en-US/products/thunderbird > "Contact Us" > https://www.mozilla.org/en-US/contact/spaces/ > "Contact Us" > "Need help with Firefox? Get it on our support site" > https://support.mozilla.org/en-US/ Thunderbird > "Ask a Question" > "Thunderbird" > "Other" > https://support.mozilla.org/en-US/questions/new/thunderbird/other > "Can’t find an answer? Summarize your question in a sentence" / "Ask this" — followed by lengthy efforts to get my problem stated in 155 characters. Surely someone inexperienced with a problem shouldn't have to go through so long a journey?