[Buttons]
- (fix) custom icon options > downloads button > size
- (tweak) custom icon options > downloads button > restored default progress animation
- (removed) custom icon options > hide downloads buttons badge
- (fix) custom back/forward buttons appearance > connected
[Tabs]
- (fix) Fx97+: classic squared tabs size
[about:addons]
- (fix) Fx97+: show buttons instead of popup options