Consistent crashes when trying to watch a video
I keep getting craches of Vivaldi after I tried to view a video. I already tried reinstalls and removing all traces of Vivaldi with "AppCleaner". After the cleanup Vivaldi worked for a little while until I tried to watch a video.
Start of the crash report:
Process: Vivaldi 
Version: 1.10.867.42 (1.10.867.42)
Code Type: X86-64 (Native)
Parent Process: 
Responsible: Vivaldi 
User ID: 501
Date/Time: 2017-07-09 06:22:02.061 +0200
OS Version: Mac OS X 10.12.5 (16F73)
Report Version: 12
Anonymous UUID: 8F378152-1B75-22A5-84C0-21CAF241FEA1
Sleep/Wake UUID: BB85F94E-0867-4346-B7A8-78FA8230D34B
Time Awake Since Boot: 95000 seconds
Time Since Wake: 2100 seconds
System Integrity Protection: enabled
Crashed Thread: 19 Chrome_IOThread
Exception Type: EXC_BAD_ACCESS (SIGSEGV)
Exception Codes: KERN_INVALID_ADDRESS at 0x0000000000000018
@mattmunnich Thanks for the report. Unfortunately, this has become a common Vivaldi crash that's occurring on some sites when GPU hardware acceleration is disabled, either intentionally (within chrome://settings) or if your GPU has been blacklisted by the Chromium developers. The following topic has some more details:
Re-enabling hardware acceleration or overriding the GPU blacklist should stop the crash from occurring until Vivaldi can release a proper fix to VB-29200.
Thanks again for your report and welcome to the Vivaldi community!