The goal of this study is to examine the ways in which dialogue and peace are promoted and mobilized through a Facebook page in the protracted, ethnopolitical conflict between Israeli-Jews and Palestinians. A thematic qualitative text analysis based on the grounded theory approach was conducted on posts and comments that were published on the Facebook page of the Israeli grassroots movement Women Wage Peace (WWP), created by the Jewish and Arab women that participate in this movement. Our findings point to three major mechanisms through which attempts to mobilize peace were performed: building solidarity, maintaining engagement, and calling for action, thus contributing to our understanding of social media as a dialogue-provoking platform that enables users from different gender and ethnopolitical groups in divided and conflicted societies to perform peacebuilding actions. However, the findings indicate that at the same time, the page also constitutes a space for blatant expressions of hostility, hatred, and sexism that convey a backlash against the initiative and activity of WWP.