#### Beyond Linux® From Scratch (System V Edition) - Version 12.3

### Chapter 40. Graphical Web Browsers

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# falkon-24.12.2

## 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.

This package is known to build and work properly using an LFS 12.3 platform.

### Package Information

- Download (HTTP): https://download.kde.org/stable/release-service/24.12.2/src/falkon-24.12.2.tar.xz

- Download MD5 sum: 7abeb30a6628e367725b38380e7f7eb8

- Download size: 2.5 MB

- Estimated disk space required: 156 MB

- Estimated build time: 1.6 SBU (Using parallelism=4; add 0.6 SBU for tests)

### falkon Dependencies

#### Required

extra-cmake-modules-6.11.0, KDE Frameworks-6.11.0 (for karchive), and qtwebengine-6.8.2

### Note

Strictly speaking, only karchive and ki18n are required to build falkon, but several other packages in KDE Frameworks-6.11.0 can be used if they are present. To build only karchive and ki18n, download those packages from the directory specified in KDE Frameworks-6.11.0 and use the build instructions on that page, changing the $KF6_PREFIX to /usr.

#### Optional

gnome-keyring-46.2, 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 -D CMAKE_INSTALL_PREFIX=/usr \
          -D CMAKE_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

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

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

`-D BUILD_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

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