I'd love a Mastodon integration, but I wonder how the different instances would work?

I'd love a Mastodon integration, but I wonder how the different instances would work?

I just downloaded the latest Opera for my Windows 7 PC. The browser itself works well. But there's this problem that, in settings, it says ''The default browser is currently Opera''. But any attempt to open a webpage without opening the browser first opens Internet Explorer 11. So I decided to do it manually. I clicked Start menu and then default applications. Opera wasn't in the list. Internet Explorer was. I clicked Internet Explorer and looked at it's list of defaults. It was default (and couldn't disable) for the .url, webpages and other things, but it was disabled for others like .htmls. The .html thing actually showed the Opera logo and said something like ''Opera HTML File'' or whatever. Can you please help?
Windows 7 SP1
Opera Stable 41.0.2353.56 - Opera is up to date.

If it helps my extensions are the Chrome extension extension (to install extensions from Chrome Web Store), MEGA, Chrometana Beta, Deadlockers, Avast! Online Security, Amazon and Adblock Plus, and maybe some others I dont remember.

It also dont show Search suggesstions. Im not able to try anything now because today theres a Doodle and it it showing.

I have Opera developer 37.0.2171.0. One day I found a Javascript bookmark in a forum that when clicked may show a developer console. Then I may write something to make a scratch.mit.edu user image dissappear, but just refreshing the page would restore it. Every post in that forum said it worked to the people. So I added it to Opera and clicked it. The console showed for a half sec and then dissappeared. I clicked a lot of times and nothing happened. So I deleted that bookmark and, searching for something new to do, entered Google. But the logo wasnt there. There was just a box with a broke image icon and the 'Google' words. And when I search something it works, but the logo is a line and blank. Also, Google Images search show some images and the other ones are gray boxes. And clicking them doesnt open them fullscreen. Also, Google searching questions that Google may give me the answer, the questions show up, but clicking them doesnt show up the answer, or anything. Right clicking the box or the blank space in the Google logo space and clicking Open image in a new tab shows the logo perfectly. Help please!

Im having the same problem in my computer, in 2 sites, i dont know if it is going to happen anywhere else. I have Windows 10 32-bit, Opera developer latest version (37.0.2142.0), and the error 'Page crashed' appears. My extensions are Adblock Plus and Amazon. I like Peanuts (comic strip) and I was exploring peanuts.com today, and then I found this page peanutizeme.com and I loaded it. I changed to other tab to wait as it loaded, and when I changed to Peanutize Me, the 'Page crashed' error popped up. I refreshed the page and said 'Loading' and then, the error popped up again. I closed the page, hoping to find the solution later. Then I found The Peanuts Movie page and loaded it. 'Loading' with Snoopy's image for a moment, then 'Page crashed' popped up again. Here is my full About opera page.

Opera developer 37.0

Do more on the web

Version information

Version: 37.0.2142.0 - Opera is up to date
Update stream: developer
System: Windows 10 32-bit
Browser identification

Mozilla/5.0 (Windows NT 10.0) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/50.0.2638.0 Safari/537.36 OPR/37.0.2142.0 (Edition developer)

Paths

Install: C:\Program Files\Opera developer
Profile: C:\Users\patty\AppData\Roaming\Opera Software\Opera Developer
Cache: C:\Users\patty\AppData\Local\Opera Software\Opera Developer
Thanks to everyone who built the new Opera for computers!
In memory of Geir Ivarsøy. Copyright 1995-2016 Opera Software ASA. All rights reserved.
Made possible by the Chromium open source project and other open source software.
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Please help me