Mozilla is trialing a Firefox Nightly feature called Mini Window that lets users pop a tab or page section into a small, always-on-top window with minimal controls. The window hides the address bar and toolbar until hovered, making the content resemble a standalone web app while staying visible above other Firefox windows.
news.slashdot.org
· 2026-11-03
Mozilla has introduced a beta feature called Mini Window in Firefox Nightly that lets users detach a tab, or part of one, into a small floating window resembling a standalone web app. The Mini Window hides the usual browser interface until the cursor hovers over it, revealing only the address bar and basic navigation controls, and it stays on top of other Firefox windows. The feature is currently available only in the Firefox Nightly build.
zdnet.com
· 2026-11-02