She announced her retirement from the Senate effective August 27, 2021 to devote more time to other pursuits such as her role as chair of the board of the Jewish Federation of Greater Toronto.

Her brother David Frum is a political author and journalist, and was a speech writer for George W. Bush and helped coin the phrase "Axis of Evil".

In 2012, Minister Jason Kenney appointed Senator Frum Co-Chair of the Advisory Council for the 2013 Task Force for International Cooperation on Holocaust Education, Remembrance, and Research.

[8] In 2013, Minister Rona Ambrose appointed Frum to sit on a task force to promote the participation of women on corporate boards.

In December 2013, Frum and her husband co-chaired the Jewish National Fund's Negev Dinner in honour of Prime Minister Stephen Harper.