Q. Some time ago I heard that Horav Shlomo Miller paskened that women in shul do not have to stand up when the Aron Hakodesh is opened. Is that true?
A. Horav Shlomo Miller's Shlit'a opinion is that in principle women do not have stand up when the Aron Hakodesh is opened, since they are standing behind a separating mechitza.
However, in question 892 regarding if women also kneel on Rosh Hashana and Yom Kippur, we wrote:
Nitei Gavriel (Yom Hakipurim 57: 7) rules in regards to men prostrating, that all able people in a congregation should maintain a unified tradition. Otherwise, they may incur in the prohibition of Lo Tisgodedu, or separating into conflicting groups.
Horav Shlomo Miller’s Shlit”a opinion is that indeed all people should follow the minhag and customs of the location or the majority of the mispalelim."
The same would apply in this case.
Rabbi A. Bartfeld as advised by Horav Shlomo Miller and Horav Aharon Miller Shlit'a
Important Numbers
