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.

@thelittlebrowserthatcould Goto the URL opera://bookmarks and try to edit the speed dial's properties there. The URL checker code in that field I think is less picky.

You used to be able to focus the page and type thisisunsafe on your keyboard to bypass the warning and have it remembered. Could have been removed from Chromium though. You'll have to try it.

@manteiga-planta You had RGX on for images at the URL opera://settings/lucidMode?

@YoNi127 When it happens and you hit shift + esc in Opera, what is the description for the specific process that's using the most CPU compared to the other processes?

@manteiga-planta To investigate further, you'd need to upload one of those PDFs somewhere and link to it so someone at Opera can download it and check it out.

@manteiga-planta I can see the differences in the pics, but do you have a link to a public pdf that does the same thing?

@hucker Yes, I was talking about gestures for the right-click, hold, drag down and release or down and up and release.

@hucker opera://startpageshared is the URL for the speeddial page, but I don't think it's allowed via the command line.

@Frozenfan53 Does it work in a test standalone installation?

Using Opera's shortcut (that executes just opera.exe) while Opera is already running is supposed to create a new window. To create just a new tab kind of outside of Opera's UI, you can right-click it's taskbar icon and choose "new tab" to create a new start page tab in the currently-focused window.

If you want to create a new tab in the currently-selected window using a shortcut, you'll need to create a new Opera shortcut (or modify Opera's existing one) that launches a specific http or https URL in Opera.

For example, you can right-click on your desktop, goto "New", choose "Shortcut", point it to opera.exe, change its name to "Opera New Tab" and click Finish. Then, you can right-click on that shortcut, goto "properties", switch to the "shortcut" tab and change the command in the target field to:

"C:\Users\yourusername\AppData\Local\Programs\Opera\opera.exe" "https://example.com/"

for example, apply and OK out.

Then, that shortcut won't create a new window and will open a new tab in the currently-focused window.

If you don't want it to be some page, you can pass "about:blank" to opera.exe as that's allowed. The page will be blank of course, but will have "about:blank" in the address field.

Besides that, not sure. Opera doesn't have an option for a single-window mode. There might be some extension that force a new window opened from a shortcut into a tab into the currently-focused window, but don't know if there is one.