Goto the URL opera://flags/#search-in-open-tabs, disable the flag, and restart Opera.

Goto URL opera://settings/startPage. You'll see a suggestions option that you can disable (among other things).

Test this solution. Remove the Opera Safe Store password from Keychain Access login item.

Steps:

Open Keychain Access application

Choose 'login' keychain on left

Choose 'Password' group

Find 'Opera Safe Storage' entry, right click it and choose Delete.

You can goto https://addons.opera.com/en/wallpapers/?tag=animated and install one of the animated wallpapers. Then, in Opera, goto the URL opera://about and take note of the "profile" path. Then, close Opera and look in the "themes" folder in the profile folder.

You'll see the folder for the wallpaper you installed. In it, you can see how to create your own. You then just zip up your persona.ini file with the webm file and thumbnail and you 'll have your custom wallpaper.

Things you can try:

Goto the URL opera://about and take note of the "profile" path. Then, close Opera and delete the WidevineCDM folder in the profile folder.

Then, start Opera, goto the URL opera://components, click "update" for Widevine, let it update, and restart Opera.

Then, start Opera and goto https://html5test.com/ and make sure it shows "yes" for h.264 support and "yes" for aac support.

Once that's good, goto https://bitmovin.com/demos/drm, make sure it says "Using Widevine" above the video and "Widevine" for EME below the video, and "video/mp4; codecs="avc1.42c00d" for MSE below the video. And, make sure the video plays and you can hear its audio.

Then, goto the URL opera://settings/siteData, type spotify.com in the search-cookies field and choose "remove all shown".

Then, goto https://open.spotify.com/ in a new tab, log in, and try to play some music.

If you still have problems, goto the URL opera://flags/#reduce-user-agent, enable the flag, restart Opera, and try again.

If you still have problems, goto the URL opera://settings/system, disable hardware acceleration, restart Opera, and try again.

If you still have problems, goto the URL opera://extensions, disable all your extensions, and restart Opera.

If you still ahve problems, make sure you're not using Opera's VPN, and try turning off Opera's Adblocking and tracking protection.

If you still have problems, try all of the above with a standalone installation.

You can also goto the URL opera://settings/content/protectedContent, and make sure "Sites can play protected content" and "Sites can use identifiers to play protected content" are set with no sites in the custom behaviors list.

In the Opera program files directory, right-click on launcher.exe to create a new shortcut and place it on your desktop. Then, on the desktop, rename it what you want. Then, right-click on the shortcut, goto properties and then the "shortcut" tab. On that tab, modify the target to add the --user-data-dir command-line switch.

For example:

"C:\Program Files (X86)\Opera\launcher.exe" "--user-data-dir=C:\Users\yourusername\Opera2"

(I personally have a "My Program Files" folder in "C:\Users\myusername", so I'd use "C:\Users\myusername\My Program Files\Opera2" for example.)

You can create as many shortcuts as you want with each using a different profile folder.

See http://peter.sh/experiments/chromium-command-line-switches/#user-data-dir for more info.

Log into https://gemini.google.com/app in a tab.

Then, enable the "Custom user sites for browser sidebar" flag at the URL opera://flags/#sidebar-site-panel, restart Opera, click the 3 dots at the bottom of the sidebar, scroll down to Custom Site Panels and add https://gemini.google.com/app.

I finally got this to happen to me in Opera GX. I then went to the URL opera://settings/system and enabled "Use DNS-over-HTTPS instead of the system’s DNS settings". Then things starting working. I don't know if that's coincidence or not yet though.

As an alternative for now, note that you can enable the "Custom user sites for browser sidebar" flag at the URL opera://flags/#sidebar-site-panel, restart Opera, click the 3 dots at the bottom of the sidebar, scroll down to "Custom Site Panels" and add the URL for the web app you want (https://bsky.app/ for example).

You can't customize the icon for it in the sidebar and you can change its position, but it's something for now.

If you have any trouble logging in to the site in the sidebar, you can log in via a regular tab first and then reload the sidebar.

Goto the URL opera://flags/#PasswordImport, enable the import flag and restart Opera. Then, goto the URL opera://settings/passwords, click the 3 vertical dots to the right of "saved passwords" and choose to import the csv file.

For the specific format of the CSV file, export passwords to a csv file from the same opera://settings/passwords 3-dot menu in any Chromium-based browser and look at the CSV file in a text editor.

It's a bug. It's already fixed in Opera Developer so far.

Goto https://www.sync.opera.com/ and log in. Does it show that you have bookmarks there?

Do you have Kaspersky installed?

Do you have NordVPN installed (even if it's disabled)?

See https://forums.opera.com/post/378193. There might already be a flag, but I'm not sure if Opera honors it at the moment.

@zhenyahacker said in How to disable popup on url copying:

This is annoyning. Who the hell designed it?

This feature comes from Chromium that Opera inherited. It's called a "toast" notification.

In Chrome, if you goto the URL chrome://flags and search for "toast", you'll see a few flags you can disable like the "Top Chrome Toasts" flag that are supposed to (didn't check) disable this annoyance.

If you do the same in Opera, you'll see "Top Opera Toasts". In my case though at least, it's already disabled. So, Opera might not honor the flag yet. Or, maybe you have to enable it, restart Opera, disable it and restart Opera again to get Opera to honor it. Then, again, it might not help in Opera no matter what you do at the moment.

If you look through the feature requests for Opera, you'll see that some users desire Snapchat in the sidebar too. And, for non-messengers, there are wishes for Deepseek, Copilot and Gemini.

It would be awesome if the custom site panels feature in opera://flags because a first-class citizen in Opera. Also, either way, it currently has an limit of 5 sites. That limit should be increased per DNA-120562.

See https://forums.opera.com/topic/74359/request-bluesky-for-sidebar for Opera GX users requesting Bluesky.

If you don't see Bluesky etc. in the sidebar setup, goto the URL opera://extensions, turn on developer mode, click "update", goto the URL opera://about, check for updates, wait a minute and restart Opera.

Creating thread.