Use mbasic.facebook.com in Opera Mobile 10 (an older browser you can still find) – it sometimes handles older SSL better than IE.
Windows Mobile 6.1 was eventually replaced by the touch-friendly Windows Phone 7, and later Windows 10 Mobile, before Microsoft exited the phone market entirely. However, the pursuit of "Facebook on the go" during the WM 6.1 era paved the way for the integrated social experience we take for granted today. download facebook for windows mobile version 6.1
: A simplified feed that allowed you to post updates, view friends' walls, and poke people. Use mbasic
If you still want the dedicated app, you need an from around 2009–2011. The last official version for WM 6.1 was Facebook 1.1.0.17 . and later Windows 10 Mobile