Thank you! Based on the above comments, the issue is verified with Firefox 135.0a1 (2024-12-05) on Windows 10x64, macOS 12 and Ubuntu 24. The pined tabs are correctly moved by drag and drop when overflowing.
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Thank you! Based on the above comments, the issue is verified with Firefox 135.0a1 (2024-12-05) on Windows 10x64, macOS 12 and Ubuntu 24. The pinned tabs are correctly moved in vertical mode by drag and drop when overflowing.