Vivaldi Freezes When Copying/Pasting Large Amounts of Text on Windows

Veddu

Hi all,

I've been encountering a recurring issue with Vivaldi on Windows that I wanted to bring up in case others are experiencing the same, or if there's a known fix.

Whenever I try to copy or paste a large amount of text (for example, several pages of content or large code snippets) into Vivaldi—whether it's in a web-based editor, form field —the browser freezes up completely. The only way to recover is to close the affected tab.

Here are some details:

Operating System: Windows (latest updates installed)
Vivaldi Version: [7.4.3684.38 (Stable channel) (64-bit)]
Extensions: Tried with and without extensions
Tried creating a new user profile: Issue still persists (tried on Microsoft loop)
No similar issue in other browsers: Tested in Chrome, Firefox, and Edge without problems
This seems like a performance issue possibly related to clipboard handling or memory usage. Has anyone else seen this behaviour? Any suggestions or workarounds would be appreciated.

Thanks!

Hadden89

@Veddu it will help if you share the url so other can test , or giving some context at least.

DoctorG

@Veddu said Vivaldi Freezes When Copying/Pasting Large Amounts of Text on Windows

Large means what? 100,000 lines of text? 1 GByte of text?

DoctorG

@Veddu I was able to visit https://html.spec.whatwg.org, hit Ctrl+A, Hit Ctrl+C and paste in a text area with Ctrl+V.
From page 40 Mbyte HTML (~ 11,000 lines) can be copied.
7.4.3684.38 Win 11 23H2

Veddu

@DoctorG said in Vivaldi Freezes When Copying/Pasting Large Amounts of Text on Windows:

@Veddu I was able to visit https://html.spec.whatwg.org, hit Ctrl+A, Hit Ctrl+C and paste in a text area with Ctrl+V.
From page 40 Mbyte HTML (~ 11,000 lines) can be copied.
7.4.3684.38 Win 11 23H2

Yes, I copied the whole page with Ctrl+C and pasted it into jsfiddle.net, and my browser became unresponsive.

Firefox, however, handles it much better..

Now my scenarios are not that extreme but it happens with working with Large Amounts of Text.

Now I tried with edge and it looks like it has same issue as vivaldi.

DoctorG

@Veddu Pasting so large text takes time for JSFiddle to recognize the code ans let JSFiddle act slow or freezed.
Same as in Chromium 138.
Not a bug, but slow code highliter/formatter.

Pathduck

Comparing with Firefox is pretty much pointless, completely different rendering engine and process/memory management.

My result in Firefox are basically the same as in Vivaldi:

Just don't do weird stuff browsers can't handle is my advice.

Veddu

@Pathduck

To clarify, the testing was simply to reproduce the situation; therefore, I maintain that my scenarios are not overly extreme.

In my profession, I handle substantial quantities of text, including ZPL and VB scripts, so this is not unusual "weird" stuff. However, having tested this on other browsers, the issue does not appear to be specific to Vivaldi.