update-manager || web browser

[Ralf Mardorf]

Hi,

others already pointed out that more RAM not necessarily will help.

I'm using web browsers not in the same way as you do, so I can't give
hints regarding your work-flow. However, I used older versions of Opera
too and some of it's features that should improve performance did just
the opposite. I dislike the new Opera and taking a look at it's
settings my guess is, that you should experiment with different settings.

Have you compared Opera with it's successor Vivaldi?
https://vivaldi.com/story/

Have you tested other advanced web browsers?

QupZilla, IceCat, PaleMoon, Firefox, Chrome, Chromium?

My recommendation is to test QupZilla, available by the official Ubuntu
repositories.

You could try one of the minimalistic lightweight web browsers, such as
xombrero. Using xombrero requires reading the man page.
  
  $ man xombrero

Some web browser might not be available by official repositories, but
binaries might be provided by upstream, e.g.
  
  $ cd /tmp/
  $ wget http://mirror.unicorncloud.org/gnu/gnuzilla/38.5.2/icecat-38.5.2.en-US.linux-x86_64.tar.bz2
  $ tar xjf icecat-38.5.2.en-US.linux-x86_64.tar.bz2
  $ rm icecat-38.5.2.en-US.linux-x86_64.tar.bz2
  $ sudo chown -R root:root icecat/
  $ sudo mv -i icecat/ /opt/icecat-38.5.2
  $ cd /usr/local/bin/
  $ sudo ln -s /opt/icecat-38.5.2/icecat icecat

Replace pluma with your favourite editor to write a desktop file.

  $ sudo pluma /usr/local/share/applications/icecat.desktop

Content of the desktop file:

[Desktop Entry]
Encoding=UTF-8
Exec=/usr/local/bin/icecat %u
Icon=/opt/icecat-38.5.2/browser/icons/mozicon128.png
Type=Application
Terminal=false
MultipleArgs=false
Name=GNU IceCat
GenericName=Web Browser
MimeType=text/html
StartupNotify=false
Categories=Application;Network;

Regards,
Ralf