If this policy is set to False, the "Always allow" checkbox is not displayed and the user will be prompted each time an external protocol is invoked.Google Chrome is one of the most renowned Web Browsers that has a high global value. If this policy is set to True or not set, when an external protocol confirmation is shown, the user can select "Always allow" to skip all future confirmation prompts for the protocol on this site. Since the availability of Google Chrome v79 the ExternalProtocolDialogShowAlwaysOpen settings controls the behaviour of the "Always open" checkbox in external protocol dialog. Maybe I was doing something wrong, or maybe this no longer works - I'm on Chrome 85.įinally, if you want to achieve the same in Chromium or Brave, replace all mentions above of /etc/opt/chrome with /etc/chromium However when I shut down Chrome, edited the file, and restarted Chrome, it automatically removed that setting every time. In this Preferences file (I wonder why it's false not true, but OK whatever.). If you are on 85 or earlier but want a future-proof solution, you can combine them both into a single file, e.g. for capturing within Emacs's Org mode) across all sites without any prompting, as requested by the original question, you need to use the URLWhitelist policy for Chrome 85 and earlier, and URLAllowlist for Chrome 86 and later. If instead you want to skip the dialog for a certain protocol (e.g.
STOP A WEB SITE FROM LAUNCHING ANOTHER WEB SITE IN CHROME FOR MAC UPDATE
This is an update answer which is very helpful, but only covers the ExternalProtocolDialogShowAlwaysOpenCheckbox policy for ensuring the "Always open." checkbox is visible. I know the original question was for Windows, but the answers and comments clearly show appetite for an answer for Linux too.
I have not tried this on Windows, but it looks like there is guidance on the enterprise policy page for URLWhitelist. defaults write URLWhitelist -array 'myprotocol1://*' 'myprotocol2://*' 'myprotocol3://*' If you go this route, it doesn't look like you need to bother with the checkbox setting above. This is helpful for Selenium and other automation, meaning that the URIs open without user intervention and you don't need to pre-configure the browser.Īssuming that your protocol handlers are myprotocol1://whatever and myprotocol2://whatever, you can do this on Mac. Or edit the registry and add a REG_DWORD registry entry to: Software\Policies\Google\Chrome\ExternalProtocolDialogShowAlwaysOpenCheckboxįor macOS: defaults write ExternalProtocolDialogShowAlwaysOpenCheckbox -bool trueĪt least on Mac, it seems you need to quit and restart Chrome before the option becomes available.Īs an alternative to enabling the checkbox, then launching Chrome to select the checkbox, and ensuring it is persisted in the Chrome profile, it also appears to be possible to whitelist specific protocol handler URIs via the command line. Thanks to the Reddit link from earlier answer, you can restore the "Always open these types of links in the associated app" option by updating your system settings.Īpply the "ExternalProtocolDialogShowAlwaysOpenCheckbox" registry policy
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