Q. Somebody recently told me that there is a minhag one should not visit a cemetery after Chatzos (noon) on Erev Shabbos. Is this a common practice?
A. Nitei Gavriel (Avelus 2: 82: 11), Gesher Hachaim (32: 5), Kitzur Shulchan Aruch (188: 14), Orchos Rabbenu (p. 304) and others permit to visit a Beis Hachaim on Friday afternoon or Erev Yom Tov.
That is the common minhag, although some abstain.
Horav Shlomo Miller’s Shlit’a opinion is similar,
Rabbi A. Bartfeld as revised by Horav Dovid Pam, Horav Aharon Miller and Horav Chanoch Ehrentreu Shlit’a.