Per this reference
Starting in this latest release, you’ll begin to see all extensions to
the right of the URL bar, so you can easily remove anything you don’t
recognize. Just right click the extension icon and select “Remove from
Notice that what this means is that all extension buttons are now going to appear all the time beside the address bar (unless you hide them in the hamburger menu), whether they used to have buttons or not. (Even the "add to favorites" button is now there.)
pageActions (buttons that used to appear only in specific pages) have also been moved from inside the address bar to its right and show up whether they're active on the current page or not. This doesn't break the extensions' functionality, but it certainly results in a much poorer experience, especially for those of us who have dozens of extensions installed.
This discussion includes their justication for these changes:
The reason for this is to protect our users. We've heard too
frequently that many users are unaware of the extensions they have
installed, whether this is due to sideloading, installation by
phishing, or simply the user forgetting how many and which are
installed. Unfortunately, extensions consume computing resources, and
may have significant security, privacy, and performance impacts.
Because of this, we've decided we need to increase user visibility.
Displaying the action persistently, even in the cases of a previously
hidden page action or an extension with no action, is necessary
because the presence of an action doesn't always correlate with the
extension acting. We also can't show the action conditionally on,
e.g., a per-tab basis, because there are many actions that are not
correlated with any tab. In order to ensure users are aware of the
extensions they have installed that could be affecting their browser,
we need to ensure each extension is visible