In addition to checking your security software to see if it's interfering, you can check some things to make sure you're not infected with anything.

Goto "Internet Options" in Windows. On the "Connections" tab, click "LAN settings". Make sure "Automatically detect settings", "Use automatic configuratio script" and "Use a proxy server..." are all unchecked.

In Windows Explorer, goto "C:\Windows\System32\drivers\etc", double-left-click on the "hosts" file and choose to open it with Notepad. Make sure that there are no non-blank lines that do not begin with '#'. As in, make sure there are no active entries (except for 127.0.0.1 localhost if you're on WinXP).

In Windows, goto "Network and Sharing Center" and click on "Change adapter settings". Then, right-click on the adapter you're currently using and click "properties". Under the "Networking" tab in properties, double-left-click on TCP/IPv6 and make sure "Obtain automatically" is set for both IP and DNS. Repeat for TCPIPv4.

Download the free version of Malwarebytes (when/after installing, choose to use the 14-day premium trial) and scan your computer with it.

Do the same with Adwcleaner just for good measure.

You can uninstall Adwcleaner and Malwarebytes when you're done with them if you want.

In Firefox, goto the URL about:preferences#general and click on "Network Settings" at the bottom (or search for it). in there, set "No proxy" and ok out. Also, make sure you have no extensions in about:addons. Then, see if that helps things work in Firefox. If it does, then it's probably an issue with the Internet Options proxy setting.

@bador

Okay. Download the Opera installer, launch it, click "options", set "install path" to a folder named "OperaTest" on your desktop, set "install for" to "standalone installation", uncheck "import data from default browser" and install. Test in that Opera. Do not enable VPN, the ad blocker or Opera Sync in it. Also, do not install any extensions.

Does it work fine there?

Just in case it's helpful to the op, one can goto the URL opera://settings/keyboardShortcuts and set a shortcut to toggle the bookmarks bar.

For each label, go into its properties and set "hide these messages from other views". Then, in "All Messages/Received" for example, click the "settings for this view" button on the message list toolbar and uncheck "show hidden". Then, the list will only show non-labeled messages. You can then create more labels and drag messages to them. They'll disappear from "Received" after dragging to a label if the label has "Hide these messages from other views" set. Then, you can export each new label. Just make sure "show hidden" is set for those labels' message lists.

@bador said in Extension store not working:

I don't understand what you mean by private window

"Menu -> New Private Window" or Ctrl + shift + n. Browsing data in a private window is deleted when you close the window. Also, by default, extensions don't run in private windows. So, testing in a private window can help sometimes.

When I bookmark youtube, I get the first, but I can click the arrow on the right to switch to the one you want.

What toolbar specifically?

They're mov files. They're not supported by Opera or Chrome. You need to download them and play them with a local player. Chrome just downloads them but Opera tries to play them instead. Just right-click on the links and choose "save linked content as" to download them and then open them in a player that supports them.

Does it load find if you open it in a private window? What if you disable all your extensions? I see VPN is not on, but try disabling it in settings just to test if that's causing the problem.

Loads fine for me in USA.

See the "Download offline package" links below each download on https://www.opera.com/download to get the full offline installer. You can get them at https://ftp.opera.com/ftp/pub/opera/desktop/ too. Just make sure you're looking at the correct one. 60.0.3255.170 for example is newer than 60.0.3255.95 (170 is higher than 90), but 60.0.3255.170 isn't at the bottom of the page due to how the links are sorted. Looking at the date helps too.

I wouldn't trust any Opera downloads but the official ones anyway.