If you try to install Firefox plugins then you will have to wait for 3 seconds then only you can click on Install Now button i.e It takes three seconds to become active.It may annoy you if you are the users who install plugins frequently.
What is the reason of this 3 sec Delay?
Actually this is for security reasons because it prevents you from clicking automatically without reading for what purpose this plugin stands and whether this is trusted(verified) or not;because some plugins may act like a spyware.If so then your sensitive data(form or login or others) can be compromised very easily through the help of fake or untrusted plugins.So this 3 sec delay will give you a chance to read that what plugin you are going to install and whether it is safe or not.
How to remove this 3 sec installation delay in Firefox
1.Open Firefox and type “about:config” in the address bar(If it ask for security risk..then click on yes I understand security risks).
2.Now,Type “security.dialog_enable_delay” in the Filter Text box.
3.Then double click on the value(In the result) field to change.Set it to zero if you want to eliminate delay (or select 2000 for 2 seconds delay or 5000 for 5 sec delay or whatever you want.Unit is millisecond).
4.That’s all ..now you can close the about:config tab and install the plugins without any delay.
NOTE : Be careful while installing plugins!!
VLC is the most widely used media player developed by VideoLAN.It can play all the important formats like mp3,MPEG,MPEG2,MPEG4,DivX,QuickTime,WMV,MOV,FLV..and VCDs,DVDs.It is free and Open source so you can install it very easily in your ubuntu 10.04(Lucid Lynx).The features of VLC can also be extended by using some extra audio and video pluging available freely on the internet.
Installing VLC Player in Ubuntu 10.04 LTS
By Using Ubuntu Software Center or Synaptic Package Manager
1. Open SPM(Synaptic Package Manager)(Administration->Synaptic Package Manager) or Ubuntu Software Center(Applications) and Search for vlc player.
2.Check the the box to install and apply(Required in SPM).
3.Downloading and installation will complete within few minutes.
By Using Ubuntu Terminal
1.Open Terminal -Hit CTRL+ALT+T or open it from Applications->Accessories->Terminal.
2.Type the command
sudo apt-get install vlc
3.It may ask you to enter the user password,if so then enter your password then downloading will begin and installation will also finish within moments.
4.Now,I assume you have successfully installed vlc player on Ubuntu 10.04;If any thing goes wrong during this steps let me know through comments.
Kubuntu 10.04 is nothing but the combination of Ubuntu 10.04 and KDE desktop.So application programs or software packages that are installed bydefault is based on kde desktop package.But all other internal structure except some default applications and desktop,kubuntu 10.04 and ubuntu are same.So if you are using kde then you can also install gnome desktop on your computer along with the kde desktop in parallel.Not only desktop you can also use GNOME applications like Gedit(Gnome desktop text editor) or Nautilus(File browser) although KDE has already its own text editor Kwrite and file manager Dolphin.Although KDE is little slower than GNOME desktop but its look is little more pleasant and eye friendly than other desktop such as GNOME or XFCE.
Installing GNOME on Kubuntu 10.04
#1.Go to Synaptic Package Manager(If you haven’t install the synaptic package Manager then first install it by using the command – sudo aptitude –without-recommends install synaptic in the terminal/shell) and Search for GNOME.Gnome version 2.30 is the latest stable version and you can install it.First check the box for installation and then click on apply changes to begin the download and installation process.
#2.Now this is the time to wait until the download completes and then installation will begin automatically.It may take few minutes to complete the installation process.
#3.Now you should logout(or restart the computer if it asks) from the current session and at the Kubuntu 10.04 login prompt choose Desktop session as GNOME.Select your user account and Enter your password.
#4.Now you will logged in to GNOME desktop session…Enjoy GNOME!
I hope you have installed the GNOME desktop on your Kubuntu 10.04 successfully ..if any problem occurs let me know through comments…
Adobe flash player is necessary for modern browsing experience because more than 65% of the websites on the Internet have flash contents.For playing youtube video you need latest version of adobe flash.After the fresh installation of ubuntu 10.04,you can install the adobe flash player(It will work For atleast these browsers-Mozilla,Crome,Opera,SeaMonkey and Midori) by following these steps :
step1 : Download the .deb package fr0m the adobe’s website.Its size is 3.84 MB.
Download URL : http://get.adobe.com/flashplayer/
step2 : If you have selected the default option at the time of downloading like -“Open with – Gdebi package installer” then installation will be automatically started after the completion of downloading,otherwise go to the location of downloaded file and right-click(default) on it to open with “Gdebi Package Installer”.
step3 : After some moments an option- “Install package” will appear on the right corner of a window.Click on “install package”,it may asks for user password,if so then enter your user account(Ubuntu login) password.
step4 : Wait for few minutes until the installation will complete.Now, Open the browser and open youtube.com to play a video.If no problem is there, then your work is done otherwise click on reinstall the package.
step5 : That’s all ..I hope you installed the adobe flash successfully in your Ubuntu 10.04 LTS(Lucid Lynx).