System scaling in Linux on 1920×1080 display (HiDPI)

Note system scaling works out of box with Cinnamon desktop. Open a terminal window and install it with: $ sudo apt-get install cinnamon-desktop-environment <enter> To do system scaling in the Gnome Desktop Environment, install the gnome-tweak tool. To do so, open a terminal window and enter the command as below: $ sudo apt-get install gnome-tweak-tool … Continue reading System scaling in Linux on 1920×1080 display (HiDPI)

Dark background and light text firefox add-ons good for night mode

If you surf the internet using Firefox web browser at night, you will find the white background and dark text too bright for the eyes. To change the background to black and light text, use the Dark Background and Light Text 0.5.5 add-on in Firefox. Add-on is available in Firefox and it's source code at … Continue reading Dark background and light text firefox add-ons good for night mode

Firefox on Android

After a long time, finally Firefox works very well on Android. Download it from the Google Playstore. Make sure you also get the following add-ons: 1. Adblock Plus (blocks ads while surfing) 2. Ghostery (Blocks cookies, trackers) 3. Clean Quit (Quits after deleting cookies etc) If you do attend any online education courses or webinars, … Continue reading Firefox on Android

Web sites track users with invisible canvas fingerprint rather than cookies or flash cookies

There are several websites world over that track users. Originally, tracking mechanisms included Cookies, Flash Cookies. Historically too, I have written about Firefox add-ons in the articles below: Firefox add-ons you should never surf without Watching you silently – Flash Cookies / LSOs As mitigation measures were developed to counter cookies and flash cookies, old … Continue reading Web sites track users with invisible canvas fingerprint rather than cookies or flash cookies

netstat shows unknown connections to *.clients.your-server.de domain

Upon starting Firefox and web browsing, when I perform a netstat -tuape, I find a network connection opened and shut down which points to a server *.clients.your-server.de. Upon further investigation with $ sudo netstat -tuape <enter> it was found that this shows up each time I start up Firefox and enter a URL to visit. … Continue reading netstat shows unknown connections to *.clients.your-server.de domain

How to remove Swiftfox in Ubuntu 12.04

If you have installed Swiftfox, an alternative browser to Firefox, in Ubuntu 12.04, you can remove it using the following command in a terminal: $ sudo apt-get install aptitude <enter> $ sudo aptitude purge swiftfox-prescott <enter> If you try to remove it with apt-get or dpkg, you will not find the package. However, aptitude finds … Continue reading How to remove Swiftfox in Ubuntu 12.04

Install Sun Java on Fedora 14

You can install Java from http://www.java.com on your Fedora 14 desktop. Follow the steps given below: Download file jdk-6u24-linux-x64-rpm.bin from http://www.java.com for Fedora 64 bit. # chmod u+x jdk-6u24-linux-x64-rpm.bin # ./jdk-6u24-linux-x64-rpm.bin This will install all the rpm files. # /usr/sbin/alternatives --install /usr/bin/java java /usr/java/default/bin/java 20000 The above command allows you to override the OpenJDK version … Continue reading Install Sun Java on Fedora 14