I am visually impaired. I just downloaded the latest T-Bird, versino 78.7. I use a a Mac with Big Sur. I have difficult reading the list of mails in my Inbox. I cannot make the font larger using Zoom nor by adjusting font size in Preferences. These affect individual messages but not the inbox list. There is an add-on but it is no longer supported by my version of Tbird [Theme Font and Size Changer]. It's frustrating. I thought Mozilla people wouild help with something like this. PLEASE someone please help me. Thank you.