The default keyboard shortcut for Browser Store Plus is:
Windows: Ctrl+Shift+F
macOS: ⌃⇧F
However, if you would like to customise the keyboard shortcut, you can easily do so via your browser settings. This can also prevent overlap between the Chrome and Edge versions.
Google Chrome: Go to chrome://extensions/shortcuts and locate Browser Store Plus for Chrome and tap the pencil icon. Perform your desired keyboard shortcut to set it.
Microsoft Edge: Go to edge://extensions/shortcuts and locate Browser Store Plus and tap the text field. Perform your desired keyboard shortcut to set.
Mozilla Firefox: Go to about:addons, tap the cog, and select Manage Extension Shortcuts.
Other browser: Check your browser's help centre.