If you installed the Britsino web app through Microsoft Edge and the screen flips to landscape the moment a live dealer table loads, you are not imagining it. Edge’s “Install this site as an app” routine uses a different manifest parser than Chrome, and on a number of recent builds it simply ignores the orientation member. The manifest can lock portrait all it wants; the installed window still rotates. This guide explains why that happens, how Firefox and Edge each handle casino PWAs, and what you can actually do about it.
How Edge and Firefox handle installed casino web apps
Start with what an installed casino actually is. The Britsino web app is a progressive web app: a normal site plus a manifest and a service worker, which the browser can pin to your home screen with its own icon and a chrome-free window. The Britsino app is installed from the mobile browser, not a store. Britsino has no build in Google Play and no build in the App Store, and it publishes no APK. That is deliberate. A PWA sidesteps store review cycles, so a bonus change or a new live dealer table ships the moment it goes live on the server.
Edge on Android is Chromium underneath, so installation works the same way at surface level: open the site in Edge, tap the menu, choose “Install this site as an app” or “Add to home screen.” The difference is in the install pipeline. Edge reads the manifest through its own parser before handing the shortcut to the launcher, and that parser has a spotty record with the orientation field. On affected builds, the value is dropped during install. The shortcut is created as a plain web shortcut with no orientation hint attached, so the window follows the device sensor instead of the manifest. Rotate the phone sideways during live dealer play and the table, the bet slip and the chat panel all reflow into landscape.
Firefox on Android takes a different route. Its install flow was rebuilt around 2023 and now supports PWAs properly, but it has its own quirks: orientation is usually honored, yet the standalone window sometimes keeps a thin browser strip at the top, and service worker updates can lag behind Chromium by a version or two. Practical upshot for a Britsino mobile casino user: Chrome on Android and Safari on iOS are the most predictable install targets. Safari is the only way to install on iOS at all, via Share then Add to Home Screen, and it respects orientation in standalone mode. Edge and Firefox work, but treat them as second-tier installers and verify the result before you settle in.
Fixing a landscape-locked Britsino icon and keeping it current
The first check is whether the app is actually installed or just bookmarked. A true install opens full-screen without address bar; a shortcut opens inside a browser tab with the address bar visible. If you see the address bar, the install did not complete and orientation will always follow the sensor. On Android, remove the icon, open the site in Chrome, and use the menu’s Add to Home screen entry, which produces the proper WebAPK on most devices. That path respects the manifest orientation and gives you the home screen icon with the correct splash behavior.
If you want to stay on Edge, the workaround is CSS rather than manifest. The page can ship a media query that pins the layout to a portrait aspect ratio and rotates the container back when the viewport reports landscape, using @media (orientation: landscape) with a transform on the wrapper. It is a hack, and it costs a frame of jank on rotation, but it keeps the live dealer table upright. A cleaner fix is to ask support whether the site detects the installed display mode via display-mode: standalone and forces a portrait lock in that context. Many operators already do this; if Britsino does not, the CSS route is your fallback. Note that screen orientation locking through the Screen Orientation API only works in fullscreen mode, so it will not fire inside a standalone window.
Updates are the other half of the picture. A PWA updates through its service worker, not through a store listing, so there is no app update button to press. The new version usually activates on the second launch after a deploy. If a bonus or a table feels stale, close the window completely and reopen it; that forces the service worker to check for a fresh build. The Britsino web app provides the same bonuses as desktop, so there is no feature penalty for using the installed version, but a stale service worker can hide a promotion that went live an hour ago. Clearing site data is the nuclear option and will log you out.
One more trap worth knowing: installing from a QR code or a third-party APK mirror. Britsino APK files circulating on download sites are not official, and APK installation requires unknown sources permission, which opens the door to modified builds. Skip them. The legitimate route is the mobile browser, and the safe installs are Chrome on Android and Safari on iOS. Firefox and Edge will get you a working casino, but check the orientation and the address bar before you deposit, and if the window rotates, reinstall through Chrome or apply the CSS workaround. Test with demo mode first; it costs nothing and tells you in thirty seconds whether the install is clean.
