Has the team tested this?

Unless you have reported it as a bug, i don't think so. Also, you seem to be the only one reporting this issue.

Is there a way i can report as a bug?

You can report bugs here

Has the team tested this? Is there a way i can report as a bug?

I really will like to update and keep using Opera.

I already try this in two more PCs, one whit W7 64b (my last PC) and another from my job whit WXP.
EDIT: None add-on was used during the test, and my last PC was formatted recently whit almost nothing installed (just Avast, whit all the shields unable)and no update.

Steps to reproduce

-First make a backup of your bookmarks, C:\Users\YOURUSERNAME\AppData\Roaming\Opera Software\Opera Stable, or using an add-on to convert to an .html file.

-Uninstall Opera deleting your data

-Install again Opera 30+

-Open the Resource Monitor (Start->Resource Mon.->Network tab) if you're using W7+, or Process Explorer and Process Hacker in WXP

-Open Opera, load/sync your bookmarks, the idea is that you should have a LOT of them, IF THERE IS .gifs LINKS, BETTER

-Go to the Bookmarks Manager while you check the Res. Mon. or Proc.Ex./Proc.Hac., chose a any folder whit your hundred of bookmarks

-Just watch the connection festival, all proccess of Opera connecting and updating the icons of your bookmarks

If you want, also try this with O29 and you will see that noting of this happens, none icon bookmarks is updated until you click on them.

My idea is that this only affects to someone whit a "slow" connection like me (3Megabits), and because of this most of you never noticed this.

So..... IS THERE A WAY TO MAKE THAT OPERA DOESN'T DO THIS?

Already tried with a couple of bookmarks and Opera still connects to all of them without my consent

What do you mean? At least here i've never noticed Opera connecting to (all) bookmarked pages.

Are you using any extensions? If so, try with them disabled.

Also, have you checked for malware in your computer?

If no browser is being able to open pages then there is an issue with your OS, probably with firewall. It also can be a problem with your ethernet/wi-fi adapter.

I mean after opening Opera 30, before that there is not any problem.

Maybe a corrupted bookmarks file?
If you add a couple of bookmarks, does the problem happens?

I'll try that.

Now..... have you seen if this happens to you too? i mean, about Opera 30+ connecting to your bookmarks compared to O29 (this not only happens when i open the program, also when i access to the bookmark manager or a bookmark plugin)?
I just want to know if this is a normal process now.

This question also goes to anyone that could see this post, and could verify (opening Resource Monitor in Windows) and write your experience, thanks.

Just doesn't load completely or anything, even Firefox, Maxthon, IE, nothing.

If no browser is being able to open pages then there is an issue with your OS, probably with firewall. It also can be a problem with your ethernet/wi-fi adapter.

Also if i make a clean installation, without any bookmark, the program just work fine.

Maybe a corrupted bookmarks file?

If you add a couple of bookmarks, does the problem happens?