I would like to ask for help here, as I could not find anywhere else.
I used Opera 44 with no problems keeping multiple tabs opened.
When it started to not open correctly some pages, I decided to update it to the latest 50 version. But now I find the following problems:
a) Background tabs keep consuming internet. Opera now loads the background pages and have no more the option to avoid it. I have scarce internet access and cannot afford to let my browser download internet content without need.
b) Opera uses too much ram. My PC has 4GB of ram and now Opera uses up to 90%, crashing my system. Previous version (44) used merely 53~56% at maximum.
c) Opera uses too much CPU (and time) at loading. In previous version, Opera loaded very fast and the CPU usage was not noticeable. But now it takes many seconds at 100% of my CPU.
I research this forum and the rollback options seem to not work properly. Install Opera over the folder does not work. People lose their speed dials and bookmarks. I tried to remove the 50 folder from my installation, but the program does not load.