MetaMask extension doesn't load
It keeps the infinite loading.
adry26 unfortunately I just noticed the same after new update.
The extension used to work before (well, not really work, but there was a workaround for not getting the error)
but its stuck again in the loading loop now.
Hopefully this will be addressed in the next release
Thank you for the response! Yeah, let's wait for a bug fix, then 
adry26 looks like the team is focused on improving browser functionalities rather than extensions support (except for 1Password which has been addressed in the latest release)
I use a lot BitWarden and MetaMask but unfortunately none of them is currently working as expected: BitWarden just works partially (issues with Autofill and SimpleMail API integration) while MetaMask does not work at all.
I've already pointed out all these issues to the devs, though. 
- Edited
Metamask should work when installed form popular extensions. If that is not the case please post exact steps to reproduce.
looks like the team is focused on improving browser functionalities rather than extensions support (except for 1Password which has been addressed in the latest release)
Not sure where you got that? From the release notes of just the last version:
1Password extension does not autofill #28 @Vlad
Vimium - ⇧F opens link hint in same page #225 @Fortrikka
Dashlane 2FA codes does not work #5461 @GrasPlukker
Dashlane autofill does not work #5460 @GrasPlukker
Can't install Keeper from Popular Extensions option. #5481 @TCat
YouTube age restriction bypass userscript not working #5559 @minte
Atrocious performance with Dashlane Chrome extension #5111 @ntoxeg
Fixed 1Password & Notion extension shortcuts 'CMD+Shift+X' and 'CMD+Shift+K'
Installing Bypass Paywall has not been fixed #5501 @Honcharenko
Slowly consuming more memory when using Revolut Shopper extension #5535 @prpl
Malwarebytes Browser Guard Extension Does Not Work with Orion RC But does work with Orion Beta #5576 @markbyrn
Calculate correct Chrome extension ID from key provided in manifest (if applicable)
Enabled web-ext schemes for cross-origin requests
Added browser.storage.session API
Added support for injection.word in chrome.scripting.executeScript
Implemented support for getting available update information for extension installed from chrome/firefox store (browser.runtime.requestUpdateCheck)
Improved performance of runtime.sendMessage
Fixed context menu for toolbar item in manifest V3
Fixed browser.idle API events
Fixed callback for browser.scripting.insertCSS
Fixed browser.tabs.query (when tab url contains reference fragments)
Fixed browser.tabs.onRemoved
heisznberg Same situation here. After new update, MTM extension keep loading popup, not work like the old version.
Vlad sorry about that, my intention wasn't to underestimate your work and effort by any mean.
I greatly appreciate all the work behind Orion and I've loved this browser since switching to it, would never go back to chromium-based browsers. I pay big respect to you and your development team, Vlad.
With that being said, yeah you definitely proved me wrong
Would love to see BitWarden and MetaMask being fully functional in the next RC
Metamask and Bitwarden are the two most important extensions to me, so if either of them is not working in Orion, there is not really a reason for me to make the switch. As much as I love the browser so far, I will have to postpone the switch 
Fixed in RC, out today.
Latest RC:
beware that Metamask only works if installed from popular extensions, it won't work if you get it from firefox add-ons (stuck on loading loop). Screen record here
Update on this, as of today: Metamask extension still fails to load (installed from Popular Extensions) and gets stuck.
Leaving a screen record here
Details:
Orion Version 0.99.127.2-beta (WebKit 619.1.1)
MacBook Air (macOS Sonoma Version 14.0 build 23A344)