RE: latest version of opera with bookmark manager
I FINALLY feel like Opera is actually usable now, for the first time since version 12.16! I had continued to use the version for quite a long time, but my internet security had given me all kinds of warnings the last I tried to use it. I've been using Opera since version...way back when it had to be purchased, and the 'upgrades' have made it to be completely unusable for my purposes.
I think Chrookmarks for Chrome is quite good as a Bookmarks Manager, https://chrome.google.com/webstore/detail/chrookmarks-chrome-bookma/kcdheengilgkagjehknnnofigbmlnnfj?hl=en-US
It's the Bookmarks Manager I'm currently using. Another possiblity I've tried and liked is: Neater Bookmarks, https://chrome.google.com/webstore/detail/neater-bookmarks/ofgjggbjanlhbgaemjbkiegeebmccifi?hl=en-US
Play around a bit with them both,and decide which you prefer.
Either of these bookmark manager extensions will give you, when you click on the extension icon, a nice vertical display of your bookmarks. Indeed, you might even find that with them, you can save space and not show the Personal Bookmarks Bar (which takes up space horizontally across the top of the browser) although that's a matter of taste there. To activate the Personal Bookmarks Bar you need to go Alt. P (Settings), and put a dot in show the bookmarks bar.
To download a Chrome extension easily, you need the Opera extension, called Download Chrome Extension, https://addons.opera.com/en/extensions/details/download-chrome-extension-9/?display=en
or Extension Source Viewer, https://addons.opera.com/en/extensions/details/extension-source-viewer/
One last idea. I do think you might want to download the Opera extension Add Bookmark, https://addons.opera.com/en/extensions/details/add-bookmark/?display=en
as it makes taking a bookmark easier,including clicking on the star in the Address bar to add a book mark, and placing the bookmark in a folder. You can also access that star in the context menu (right click on the web page), though from there you don't get the option to place the bookmark in a folder. You have to do that separately.
Best of luck, and let us know if you need any more help on this.