I recently decided to reset my computer. I should have took some screen shots but I was already stressed out to much as it was. :-) One of my biggest concerns was transferring my emails from Seamonkey and my Speed Dials and Bookmarks from Opera. Checking out on line usually they talk about copying files from one system to the other like in the folder: C:\Users\Terry\AppData\Roaming\Opera Software\Opera Stable
Your find a file called Bookmarks with no extension and that's your bookmark file. Your Speed Dials was supposed to be in a file called favorites.db from what I could find on line. I've been able to copy the bookmarks no problem but never the Speed Dials.
Yet my latest install of Opera doesn't seem to have that file at all. I did find a way to transfer, or least backup the Opera Speed Dials and Bookmarks. Speed Dials are the big colorful boxes that you click on to get to the web site you want, just like bookmarks. I like to refer it has bookmarks on steroids.
First click on the red Opera symbol to open the menu (top left hand corner).
In the menu that pops down click on Bookmarks. Then click on Export bookmarks... This is done on the Opera version that you have been using with all the saved bookmarks/speed dials.
This will create a HTML file like bookmarks_06_12_2017.html (the numbers represent the date so that will change accordingly). You can rename it to something else, if you want. Save it somewhere on your computer. Then you can use something like a flash drive to copy it another computer. Otherwise just save it has a backup copy.
Both your bookmarks and speed dials will all be on this one page.
Now you should be ready to get your bookmarks/speed dials back into your newly installed version of Opera.
Again click on the menu button, click on Bookmarks and this time click on Import bookmarks and settings... Then a little window opens titled Import bookmarks and Settings.
If your switching from another browser to Opera you can use this to import settings from your previous browser, otherwise in the From field click on it and choose Bookmarks HTML file and then click on the Choose file button.
Navigate to the HTML file created when you exported and click on it and Open. You will notice the bookmarks in your bookmark bar fill in accordingly and you'll hopefully get a Your selected data and settings were successfully imported! message. Click on done.
One problem I had was my speed dial page was blank to I went to the bookmarks manger.
So either go to the menu again and click on Bookmarks and then Bookmarks again, or press Ctrl + Shift + B, or if you have the bar on the left hand side showing click on the heart shape.
What happened was that Opera created a new folder called Speed Dials (top in picture) instead of copying these down to the bottom folder with the square divided into four sections.
So I clicked on the top speed dial folder and all the speed dials appeared in the right hand side of the page. If you had one or two you could just hover over a speed dial and the click on the little check mark to select it and then just drag and drop to the bottom folder.
I have 58 dials. So Ctrl + A to select them all at once and drag them all to the bottom folder, which I think Opera should have done automatically.
Well it saved a heap of time from having to re-enter them one at a time. Just a final note. Opera has this syncing option built in Opera menu > Synchronise... > You have to create an account first and then use that account in the Synchronise option in the second browser.
I tried it. It synced up my bookmarks, but not my speed dials and when I disconnected from my main browser, the bookmarks from the second went away. So it seems that this is dependent on the main browser being open and connected with the service. No good for me.