WindowSizer by Dr. Cheap

Define custom presets and switch between them via toolbar menu and/or hotkeys.

Features include:

• Make presets with custom width, height, name
• Switch window size via toolbar popup menu
• Switch window size via customizable shortcut key
• Edit existing presets
• Change order of existing presets
• Quick-fill preset values based on current window size
• Backup & restore settings
• Firefox Sync support for backups
• Light & dark theme icons