How can I move bookmarks to Opera from other browsers?

I just installed Opera, I haven't taken a look at it in years. The setup wizard displays the following and offers to import and there's a drop down list of browsers to choose from:

If you missed that during the installation, you can click Option + CMD + B or click the Bookmarks menu. There's another pop-up dialog offering to Import your bookmarks. If you still missed that one. Click the link at the bottom of the Bookmarks sidebar, "Open full Bookmarks view" and there should be an Import Bookmarks button right in the middle of the screen. If that is not there. On the left-sidebar at the bottom there is now an Import/Export button. You can drop down the list of browsers, select each one and import the bookmarks.

Ideally, when migrating from an old Mac to a new one you should use the /Applications/Utilities/Migration Assistant and have it copy at least your data files. That should cover your ~/Library which contains all these App settings and their data.

Hmm, well that's disconcerting. I would suspect there are bugs in Opera corrupting its configuration data. Or perhaps you've been victimized by adware / malware. Are you deleting the folders below when you re-install?

~/Library/Application Support/com.operasoftware.Opera

~/Library/Saved Application State/com.operasoftware.Opera.savedState

Make a copy of it first as a precaution.

There is a scan and reporting tool we use a lot on these forums called EtreCheck. The author volunteers on these forums helping people. The software is free to use and you can install it, run a scan and upload the report in reply. Use the Additional Text button to attach it. It will show if there's anything suspicious like adware / malware running. It only collects technical details about your hardware and software and what's loading behind the scenes. It does not share any personal information.

You will need to allow all the requested privacy settings when you install the software. EtreCheck requires, full disk access and a few other settings.

1. Choose the problem (not important at all, pick anything)
2. Click Start, scan runs.
3. Click the Share Report [⬆︎] on the toolbar at the top.
4. Click Copy Report.
5. A pop-up appears "How to use your EtreCheck report"
6. Click the "How to Post" button at the bottom.
7. Another pop-up explains how to post to the Apple forums.
8. Reply to this email and click the Additional Text button per the "How to Post" instructions.
9. Enter a title such as Etrecheck Report
10. Click in the Body and press CMD + V to paste the text and then submit the Additional Text.
11. Post your reply.

The report lists things that load during startup. Malware / Adware installs background services which can then re-inject themselves into various browsers. Changing the home page, delivering ads, tracking your activity, etc. I would need to review the report to look for anything suspicious like that.

Might be nothing more than Opera bugs or might be some nasty thing that keeps breaking your Opera browser. A friends kid kept installing free games that included adware and I was constantly removing it. When you install some software outside the App Store you need to pay attention, there's usually tiny fine print and a checkbox or two that is checked by default authorizing the vendor to install shopping assistants, search engines, extensions, etc. All are adware as the developer receives money from these shady marketing companies to distribute their junk ware. The marketing companies collect personal data because they can sell it. Another form of attack is more malicious and involves pirating software and hackers put malicious payloads into the installer so it rides along for free so to speak. The malware then hides behind the scenes but typically breaks stuff. Newer macOS versions are less susceptible to this but now and then I still run across nasty stuff. Worth checking to make sure you don't have anything running that is causing the browser problem requiring you to re-install it frequently.

Basically, to understand the report and to identify adware / malware it takes a pro like me to review it. There's plenty of legit things that load in the background. But I can usually spot stuff that shouldn't be there. There are some built-in buttons on EtreCheck to perform common fixes. But I really need to see the report to confirm any malware issue.

Another good tool is MalwareBytes which works most of the time and can be freely installed and run. It will remove the bad stuff if it finds anything. Still might need to check-in with me to confirm all is good. Sometimes MalwareBytes doesn't remove all of the junk and leaves some things behind.

Adobe software is big and complex but it's not something that should interfere with web browsers. So long as you installed Adobe software via Creative Cloud and not a pirated version. i.e. you have a paid subscription for Creative Cloud. There are alternatives such as Affinity Photos, Designer, and Publisher which are not subscription and priced very reasonably. Just doesn't do everything Adobe Creative Cloud can do, yet.

Not so sure about that... There's an Additional Text button on every reply. But reply to this so I can find your other posting if that is the way you go.