F.F. version: 73.01 for linux os: linux mint 19.1 Install and click tab for vue devtool. Font resize(ctrl and +) or (ctrl and -). The menu bar above vue devtool resizes but the viewing area of vue devtool fails resizing. Clicking in vue devtool area does not help. Click outside vue devtool and on the content area. Then resize. Works as expected. Click on inspector tab. Resize, works as expected. Tested vue devtool resizing on linux chrome. Works as expected.