Firefox is my primary browser at present but definitely has annoyances:
- unable to close pinned tabs without custom extensions
- unable to undo close open tabs after closing last window (also solved with extension)
- pins itself to taskbar and install desktop icon on every install
- I prefer how downloads' progress is handled in Chrome better
- Not all settings are synchronized (esp. around privacy), making it very hard to configure computers the same consistently
- Vimium
- Undo Close Tab
- Shortkeys (using it specifically to move tabs around)
- Aardvark Duex