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por bex el Oct. 8, 2018 · enlace permanente

>>Fix for TB 60 here (not mine, thx to hb9tst and despecial ):
https://github.com/protz/Manually-Sort-Folders/issues/67

download and install manually in Add-on Manager. Worked for me.<<

This fix works great in TBird 60.0 (32 bit), which I run on Windows 7 PRO (64 bit SP1).

Thanks for the tip, and the author's hard work.

Harry