@aach1 Just to add to this one - I tried the same thing with chrome, Version 57.0.2987.133, and the problem is not present. Is noone else seeing this? It's really disruptive if you drag labels onto emails rather than the other way round.
I know this topic is very old by now, but I think I finally have an explaination to everything.
I am running Windows 10 Pro N now upgraded. I always used the N version which is basically windows 10 without their Media Creation Pack installed.
I don't need Windows Media Player or its codecs as I rely on other sources. But some programs seem to require them.
I found out because the most recent Windows 10, Creators update caused to break things in an unpredictable way, until I found out that its the Windows Media Creation Pack that I had to install specifically for that windows build to make things work again.
To give an example, Spotify was working, after the update it wasn't. I installed the pack, and it worked again.
There are many different versions of this Media Creation Pack because each new build has a different version. Installing the wrong version won't trigger an error, but it won't function either. I suspect this is what the cause was back then.
I'm happy to report that toda, I don't have this issue any longer.
@onenil I'm personally cautious when it comes to making system-level changes or using undocumented command line switches to change the browser's behaviour at a low level.
Desktop Operating Systems are well tuned for tasks like web browsing, word processing, etc. Applications, like web browsers, are also tuned to run well on desktop systems. I personally wouldn't make any optimizations unless I first used performance tools on my system to understand what's slow and why it's slow. Then I'd make prescriptive changes to address specific issues and use the measurement tools again to verify that I got the performance gains that I was expecting. I have not employed any tricks on my system (outside of Vivaldi's menu settings) to make web browsing faster.
However, what if you're doing something on your system that it was not really meant/tuned/optimized to do? One time, I had to build a fairly large piece of software on my laptop; I had lots of RAM and a fairly fast processor but the disk was slow. Compilers generate a TON of temporary/intermediate files and the process was taking forever. The slow disk was the bottleneck, so I created a RAM disk and moved my build directory to that drive. I temporarily sacrificed system memory from other tasks but that sped up the software build considerably. When I was done, I reverted back to the normal system configuration.
System performance tuning is a very technical process and generally very specific to the tasks (workloads) running on your system. Generally, any changes that you make (tweaking software) will make some things faster and other things slower. What may make one person's system faster will not necessarily make things better for you, and could even have negative effects because your system hardware and workloads are different.
@Gwen-Dragon: Interesting. I have not experienced this with Win10 on any machine at any point, but I have read a couple of forum comments over the last couple of years where a Windows desktop shortcut for Vivaldi even started the wrong chrome-based browser (like, say, Slimjet) altogether. I'm not sure how that can happen.
In two websites with a gray background the icon is almost invisible because its color is close to the background color, some website colors that cause this are (2nd column is for https://dnsleaktest.com/):
Top | RGB: 220,220,220 | RGB: 245,245,245
Body | RGB: 237,237,237 | RGB: 221,220,215
A simple explanation for such issues for non-techies:
Some (bad programmed) graphics drivers and Vivaldi's internal codecs have a problem with interacting. That may be solved by deactivating Hardware acceleration.