Beyond Linux® From Scratch (systemd Edition) - Version r12.1-550

Chapter 40. Graphical Web Browsers

Falkon-24.02.2

Introduction to falkon

Falkon is a KDE web browser using the QtWebEngine rendering engine. It was previously known as QupZilla. It aims to be a lightweight web browser available through all major platforms.

Although falkon is now part of KDE, it can be installed without KDE (with the loss of kwallet functionality).

Falkon relies on QtWebEngine. Please read the warning on that page.

[Note]

Note

Development versions of BLFS may not build or run some packages properly if LFS or dependencies have been updated since the most recent stable versions of the books.

Package Information

falkon Dependencies

Required

extra-cmake-modules-6.1.0, KDE Frameworks-6.1.0 (for karchive), and qtwebengine-6.7.0

[Note]

Note

Strictly speaking, only karchive is required to build falkon, but several other packages in KDE Frameworks-6.1.0 can be used if they are present. To build only karchive, download that package from the directory specified in KDE Frameworks-6.1.0 and use the build instructions on that page changing the $KF6_PREFIX to /usr.

Optional

gnome-keyring-46.1, PySide2, and Shiboken2

Editor Notes: https://wiki.linuxfromscratch.org/blfs/wiki/falkon

Installation of falkon

Install falkon by running the following commands: 

mkdir build &&
cd    build &&

cmake -DCMAKE_INSTALL_PREFIX=/usr \
      -DCMAKE_BUILD_TYPE=Release  \
      .. &&

make

Tests should be run after installation.

Now, as the root user: 

make install &&
ldconfig

To test the results, issue: make test. All tests should pass. If any fail, the full results will be in Testing/Temporary/LastTest.log.

[Note]

Note

When upgrading this package, it is possible that the contents of the application will remain empty even though everything else appears to be working properly. In this case try removing ~/.cache/falkon and restarting the program.

If you have installed Pyside2 you will want to examine hellopython.py which is in the scripts/ directory, and perhaps copy it to your home directory.

[Note]

Note

If you are on a non-x86_64 architecture and run into problems with missing text, you may wish to export QTWEBENGINE_CHROMIUM_FLAGS="--no-sandbox" prior to running Falkon.

Command Explanations

-DBUILD_TESTING=OFF: This will save a little time and space by not building the test programs, use this if you do not wish to run the test.

Contents

Installed Programs: falkon
Installed Library: libFalkonPrivate.so.3
Installed Directory: /usr/share/falkon

Short Descriptions

falkon

is a web browser which uses qtwebengine

libFalkonPrivate.so.3

contains functions used by falkon