Error: "Oops, something went wrong while loading" [SEE APPROVED ANSWER]

I also have this problem (and have emailed 1Password support about it (#QMC-74326-711). I have since tested the suggested workaround above (thanks @Solos for letting us know here), and I can confirm that it does work in Safari, besides the inconvenience of needing to log in again every time the browser is newly launched.

For the sake of others, these are the settings to look for. In the 1Password app:

And in the 1Password settings in the browser:

Restart the browser, and then you should be able to log in to 1Password from the browser and then have access to your vault.

Now if I can just remember to undo these settings when the fix is released.

I'm sorry for the delay, folks. The team has been working on your reports. You should be able to use 1Password in the browser version 2.14. We appreciate your patience while we continue to investigate the issue.

• Please try turning off the extension and turning it on again:

1. Right-click the 1Password icon in your browser's toolbar and click "Manage Extension."
2. Turn off the 1Password extension and then turn it back on again.
3. Click on the 1Password extension in your browser's toolbar.

If the above steps do not work, follow these steps to get 1Password working in your browser again:

The actions below would necessitate you using your account password to unlock the 1Password in the browser until an update can be released. After releasing a new build, you can turn on the shared lock state and return to using biometrics for unlocking.

• Turning off the shared lock state:

1. Right-click on the browser toolbar icon.
2. Select settings.
3. Turn off the General section's Integrate with 1Password app setting.

• Turning on the shared lock state: (Only after a new release is issued)

1. Right-click on the browser toolbar icon.
2. Select settings.
3. Turn on the General section's Integrate with 1Password app setting.

We will follow up here in the community when a resolution occurs. You have our apologies for the disruption.

I'm seeing the same thing. The extension is able to recognize whether or not 1Password is unlocked, but that is all. It is otherwise completely non-functional.

…nevermind… I spoke too soon.

I opened google chrome today (one of several profiles I use on this PC). When I used my keyboard shortcut to open the plugin and log in (Ctrl + Shift + Space), the plugin appeared with the error "Oops, something went wrong". It works when accessing it via other Chrome profiles (same 1password account).
Screen recording of the issue here: https://imgur.com/a/KcHUuhs

1Password Version: 1Password for Windows 8.10.9 (81009046)
Extension Version: 2.14.0
OS Version: Windows 11 Professional
Browser: Chrome 115.0.5790.171 (Official Build) (64-bit)

Also, it took me ages to find the correct URL to log into the community site to post this question. When logged into https://my.1password.com/home > click my profile picture on top-right > Help & Support > opens https://support.1password.com/category/accounts/ in a new tab > contact support on top-right > redirected to https://support.1password.com/contact/ but not signed in despite being the same browser session. Clicked sign in, which takes me back to https://my.1password.com/signin to sign in again, to repeat this ad-infinitum.

Just throwing in my 2 cents - also doesn't work on Edge. The Add-On comes up blank with no content. The Desktop App works fine, but Extension in Edge is empty.

I will attempt to use the resolution above temporarily. Thank you.

EDIT: Removing the Shared Lock State works on Edge as a temp solution.

I can add that the primary fix (turning the extension off and then on again) doesn't work consistently on Brave on Linux.

Is it no longer possible to reply to a specific comment in a thread on this forum? I'm trying to reply to @1P_Tommy
and his official response from 8:07am this morning. His answer assumes that there is a 1Password icon in the browser. For me, there is not. Neither in the menu bar nor in the Preferences > Extensions. I'm using Safari. I have deleted and reinstalled 1Password for Safari three times so far, in slightly different ways. I have restarted Safari and my computer. Launching Safari normally shows no sign of 1Password inside of Safari. I have also tried launching 1Password for Safari via the Finder before launching Safari, and, alternatively, after launching Safari. In all cases, I can not see any trace of 1Password within Safari. I'm using Safari 16.6 on a mid-2015 MacBook Pro running macOS 12.6.8. This computer model cannot be upgraded to Ventura. System Preferences reports that everything is up to date.

I had this issue, Mac Book Pro, latest OS (13.4.1 (c), 1P app (8.10.9) and Safari extension. I uninstalled the app and extension then reinstalled, same issue using the browser extension. It is showing 0 entries when searching, showing 0 vaults etc on a blank tab and then if I go to a site, I get the OP error.

I did as @selfisch mentioned - created a new entry in the main app - just used fake website, made up username and password - now the plugin appears to be working partially. I can click the extension button in the browser bar and it shows logins but trying to autofill the text boxes with selecting 'Autofill' or clicking the 1 password icon inside the text boxes does nothing. I have to copy/paste the entries over.

I have turned off the integrate with 1Password app setting in the browser extension settings.

edit: I have now turned off "Connect with 1Password in the browser" setting in the main 1Password app settings. This is in addition to the extension setting change I mentioned. This seems to have worked to get autofill working again.