Pin location across Google, in Advanced options. When on, every Google search in the browser (including the ones from the address bar) uses the chosen country, city and language until you turn it off. While it is on, the toolbar icon shows the country’s flag and a “Pinned to…” label appears next to Advanced options.
A “New” mark on Advanced options points to the new features until you open it.
Location label on Google: on every Google search whose location the extension is changing, a small label with the extension icon, the flag and the place shows in the bottom-left corner. It can be hidden with its close button.
Open searches in Incognito by default: in Advanced options, “Open searches in: Incognito”. The main button and Enter open in Incognito, and the second button becomes “Normal”.
Selected text: open the extension with text selected on any page (except Google) and it is pre-filled as the keyword.
Right-click search: select text, right-click and search it on Google from your last location, in a new tab or an Incognito window (Firefox: private window, when the extension is allowed in private windows).
The review invitation now also shows in Firefox, linking to the add-on page on addons.mozilla.org. Searches from the right-click menu also count toward it.
New permissions, no install warning: scripting and contextMenus.

Keeps the location: in the tab the extension opens, a new search from Google keeps the chosen country, city and language. Uses the optional access to google.com, now requested on the first search (Mobile or Desktop). Only that tab is affected, and it ends when the tab is closed. If access is declined, everything works as before.
Dark mode: in Advanced options, choose Auto (follows your system), Light or Dark.
Simpler form: keyword, country and city. The search language moved to Advanced options and still adapts to the country automatically.
Mobile mode now presents itself to Google as your own browser in its mobile version (Chrome for Android or Firefox for Android, same version) instead of an iPhone with Safari. It is more consistent, and Google shows fewer captchas.
After some use, a small note in Chrome invites you to leave a review. It shows at most twice and never again after you choose.