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Reduce Firefox RAM usage and Improve System Performance

If you are running with low RAM on your computer, you can improve the system performance a little by reducing the Random Access Memory usage of Firefox browser. By default, there is a minimum RAM usage reserved by Firefox than it actually needs. If your PC is brand new with enough RAM modules, you do not need to worry about this part. However, for an older computer system, you may need to release the unnecessarily reserved RAM/cache usage by programs installed. If you do not know how to check the current RAM usage set on Mozilla browser, follow the instructions provided here.

Steps to Disable Over RAM usage of Firefox Browser

To do this, follow the instructions carefully.

  1. Access Config Window

    Type about:config in the address bar and press enter. Now we will get a warning window like below. We should click I'll be careful, I promise button.
    Configuration

  2. Right click on browser.cache.disk.capacity

    Now find "browser.cache.disk.capacity" in the Firefox configuration window and right click on that. The default value set for browser cache is 51200. To reduce this, click on modify.
    Reduce cache usage (of Firefox browser

    Now set the new value to 20000 to limit the cache usage of Firefox.

Always make sure the changes do not affect the permanence of Firefox. If you are seeing any performance issues, you have to change the value to default and then reduce the cache usage step by step. For example, if the limit 20000 is not sufficient, you have to increase it to 30000 and check. If the issue persists you have to set the limit as 35000. You can use different values as per the needs.

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Tools to Check Internet Connection Speed - Upload and Download Speed Test

Have you ever felt you are not getting the Internet speed promised by your ISP? If yes, you are not alone. Irrespective of the hard measures by Internet Service Provider, still many users don't receive the promised upload and download speed. It is true for various types of ISPs including Cable Net, DSL Broadband or Mobile Networks. However, we cannot blindly blame Service Providers because there are many factors affecting both upload speed and download speed on your device. In the case of 4G networks, data transfer speed varies with the total number of active users on the network at that time, the distance between you and the Mobile tower, quality of your handset, etc. In the case of Cable and DSL Broadband, the number of active users on the network in your region adversely affect the real Internet speed at the time. So it is better you don't blindly believe the claims of your service provider about their speed but you check it before choosing. You must check the actual upload and download speed at your location using internet speed testing tools before joining. This tutorial introduces some of the best free tools to accurately check your Internet Connection Speed.
  1. Speedtest.net
    SpeedTest from Ookla is one of the most accurate free tools to check your Internet Connection speed. SpeedTest provides both browser-based and App based tools to check both upload speed and download speed on your device. Hassle free usage is another advantage. All you have to do is visit the link below.
    http://www.speedtest.net/

  2. TRAI MySpeed
    TRAI, Telecom Regulatory Authority of India is continuously testing the speed offered by Internet Service Providers in india and offers their Speed Test tools to Mobile subscribers in India. You can get it by visiting the link below.
    http://www.myspeed.trai.gov.in

  3. Bandwidth-Place - Internet Speed Test
    Another online Internet Speed Tester to find both your download speed and upload speed. To start Internet speed test, simply go to the link below and click on Start Test button.
    http://www.bandwidthplace.com/

  4. Speakeasy Speed Test
    Another Speed Test tool is Speakeasy. Visit the link below to start the test.
    http://www.speakeasy.net/speedtest/

This is not the end of the list. There are many free tools available to check your actual download speed and upload speed. It is better you use one of them rather than the speed tester provided by your service provider.
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Different Ways to Rotate Firefox Browser Tabs

Most users have the habit to open multiple tabs and continue working with different tasks. Some users find it difficult to go back to the previous window. This tutorial is a basic Firefox browser tutorial which explains different methods to rotate tabs. It is easy to transfer working window forward and backward using simple keyboard combinations. Here you will learn how to rotate Firefox tabs forward and backward or select a specific one without going through everything.


  1. Select the Tab one Forward to Current

    To transfer the user control forward to the current working, follow the below keyboard combination.

    [ctrl] + [Tab]

    If you have multiple tabs opened and want to select the next one, you can select it by pressing Control and Tab buttons together. You can use the same keyboard combination to move the control forward.

  2. Transfer control to one tab before Working tab

    To transfer the user control to the previous tab, use the following keyword combination.

    [Ctrl] + [Shift] + [Tab]

    Pressing the Control, Shift and Tab buttons together, we can transfer user control to the previous tab from the current one.


  3. Select the Specific Firefox Tab

    In order to select the specific opened Firefox tab, use the following keyword combination.

    [Ctrl] + [Number]


    Some users do not want to rotate the control to select one specific tab. For them, there is an option by Firefox to choose the tab by pressing Control button and the number of the tab. Though this trick seems easy it has one limitation. This trick works only for Firefox tabs from 1 to 9.


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Enable Custom Belkin Router Wireless Security (WPA & WEP)

Belkin Wireless router comes with preset WiFi security. That means you don't need to spend your time to enable WiFi encryption on it. Using WiFi protected setup, you can connect all your wireless devices to it by pushing the WPS button. This feature helps us reduce the time required to configure wireless security on a Belkin router. It is more than enough to protect your network from intruders. However, if you want to make custom changes on Wireless security preset, you can follow this tutorial. There are also some technical reports which recommend do not use WPS to setup WiFi security. They find WPS can reduce the protection of WPA encryption. So it is always better to turn off WPS and enable WPA encryption on Belkin WiFi network manually by using the procedure explained in this tutorial.


Manually Enable Wireless Security On Belkin Wireless Router

In case if you want to change the preset encryption with your custom security, follow the steps below.
  1. Login

    By using the IP address 192.168.2.1 you can log in to the settings page. To learn more about it, visit the link below.
    How to Login And Configure Router

  2. Click Security under Wireless
    Break Belkin WiFi

    You can select WEP or WPA to secure your Belkin WiFi network.

  3. Enable WEP on Belkin Router

    To select WEP, click on security mode drop menu and select WEP. WEP is of two kinds WEP 64 bit encryption and WEP 128-bit encryption. You can type your Pass Phrase and generate an instant wireless key for your WiFi network.
    Break WEP

    After generating the wireless key, you should save settings by click on Apply changes. Now onwards to log in to your Belkin WiFi network, you need this key.

  4. Enable WPA on Belkin Wireless Router

    WPA is more secure than WEP. To enable WPA on your Belkin router, select WPA from security mode drop-down menu.
    Get Belkin WPA WiFi Key


    You should enter a pre-shared key to enable WPA security on your Router. Don't forget to save this WPA setting.

Importance to Set WiFi Encryption Manually

WiFi Protected Setup or simply WPS is intended to enable WPA protection for all the devices which are authorized to connect to the network without many troubles. By pressing the WPS button, all the authorized devices will be connected to the network and none of the other unauthorized devices will be able to intrude. However, in reality, it doesn't work. WPS becomes one of the important features which reduced the security of WiFi Protected Access. Right now, security experts don't recommend users to press WPS button to enable WiFi security.

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Create, Manage and Delete Wireless Filters On Windows

Windows allows users to manage IEEE802.11 networks from Command Prompt. It is done by creating wireless filters to prevent that computer from connecting to the specific WiFi network. Settings wireless filter is very important in case if you suspect your PC may join a suspicious wireless network and risk the security. One of the major threat of a computer with WiFi facility is to get connected to suspicious Ad-hoc networks. A hacker runs an ad-hoc network can steal data from your computer if it is connected it and the risk is higher if file and printer sharing is enabled. A properly set WLAN filter can protect your laptop from all the above risks. This tutorial explains how to create, manage and remove WLAN filter on Windows 8, Windows 7, Vista and XP computers.

How To Manage Wireless Filters

This section explains Command Prompt method to set wireless filer for a WiFi network on Windows PC. It also explains how to delete the WLAN filter in case if you no longer want to block that particular network on your computer. We can block both infrastructure and Ad-hoc networks by creating filters. I have explained this part with practical examples.
  1. Block a Wireless Network By Wlan Filter

    You can set wireless filters for both ad-hoc and infrastructure 802.11 networks. The format of the code to create a wireless filter to block a network is provided below.

    netsh wlan add filter permission={allow|block|denyall} ssid=NETWORKNAME networktype={infrastructure|adhoc}

    Now let us consider a practical example. Here I am going to create a filter for WiFi network "Siju1". It is an ad-hoc network and the command to enable the filter to block it is given below. You must start Command Prompt as administrator to perform it. Right click on cmd on Window search and select run as administrator. Before running this command, make sure WLAN AutoConfig service is started.

    netsh wlan add filter permission=block ssid=siju1 networktype=adhoc

    If you haven't completed the above two tasks, you may get an error like this.
    stop service

    Now we must do the following tasks.

    If you have completed these two steps before running the command on DOS prompt, you will get a message like this.
    prevent

    You will see the message the filter is added on the system successfully.

  2. Show All Wireless Filters Set

    If any wireless filter is set on your computer ago, it will stop you from accessing the specific network. So, in order to verify there are no unauthorized or unwanted wireless filters are turned on, you must periodically check all WLAN filters set on your Windows computer. You can display all available wireless filters by typing following command on Command Prompt.

    netsh wlan show filters
    stop

  3. Delete Wlan Filter

    If any wireless filters set on your computer to prevent from connecting to a specific connection, you can remove them from DOS prompt itself. The syntax for the command to delete filter is given below.

    netsh wlan delete filter permission={allow|block|denyall} ssid=NETWORKNAME networktype={infrastructure|adhoc}

    Now let us check the procedure to check and remove unwanted filters.

    • View available filters by running the command netsh wlan show filters on DOS Prompt.
      stop

      Here I need to delete siju1 filter.

    • Type the command below to delete the specific filter. Make sure DOS prompt is running as administrator.

      netsh wlan delete filter permission=block ssid=siju1 networktype=adhoc

    • Press the enter button
      clearing

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Changing Wireless Channel to Improve Wireless Signal Quality

Quality of WiFi signal from an Access Point(AP) is determined by many factors in addition to the device quality. wireless interference, obstacles in between your laptop and AP, the power of antennas, etc can influence the total signal strength. One common reason for low signal quality is the competition between different WiFi routers to use the same wireless channel. We can test it by changing the current channel to a different one. IEEE802.11 networks use multiple WiFi channels starting from 1 to 11. Among these, the best are 1,6 and 11. We should use one of these three because these three are having no overlapping. If your router is using channel 1, you can change it to 6 or 11 and check for improvements in signal quality. If you are using smart AP which can detect the best channel by analyzing the interference, you should set auto. Most modern devices support this auto-detection feature.


Now let us check the relation between interference and Wireless channel. Normally we consider the interference by other devices which uses the same frequency of Access Point. Two devices having same frequency range can cause WiFi interference. It can be avoided by increasing the distance between them. Interference on the same wireless channel is also similar. If more than one WiFi device broadcast signal in the same channel, it causes interference and reduces the wireless quality. For example, if your router uses 1 to broadcast signal, you do not need to change it as long as there are no other routers or APs use the same number. However, if multiple devices use 1, to broadcast, you may need to change to 6 or 11 to avoid interference. 1, 6 and 11 are the three non-overlapping channels.


Changing Channel will not Change the Frequency

If you are using IEEE802.11g device to broadcast, changing the channel will not change the working frequency. The 11g device works in 2.4GHz frequency. 11a works in 5 GHz and 11b standard uses 5 GHz. If you go for the 802.11n standard, it can operate in both 5GHz and 2.4GHz. Though backward compatible with 802.11n, IEEE802.11ac standard works in 5GHz only.

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Disable Firefox Browser Session Restore After System Crash

You might be familiar with the term session restore if you ever face browser crash on your PC. After a browser crash, you will be asked to restore the previous tabs those were opened. If you are using Firefox browser, you will get this option to start Firefox with the previously opened tabs. Rarely some users say they do not get a chance to recover previous tabs after a system failure. This guide tells how to fix that issue. This feature is on by default. However, if you do not want session restore feature on Firefox browser installed on your computer, you can disable it. This tutorial explains how to disable session restore in Firefox and also explains how to turn on this feature if it is disabled by default.

Turn Off Firefox Browser Session Restore

If you do not want this feature, follow the instructions below to turn off it.

  1. Go to the Configuration window

    To access the Firefox configuration page you should type about:config on the address bar and press enter button. Now you can see a warning message.
    back from crash

    Click on I will be careful, I promise to enter Firefox configuration page.

  2. Disable Firefox Session restore after a browser crash

    To disable it, select the configuration browser.sessionrestore.resume_from_crash and change the value to false.
    browser.sessionrestore.resume_from_crash

    To change the value to false, right click on it and click on Toggle.

Now onwards Firefox will no longer ask you whether to recover the previous pages after a failure.

Firefox No Longer Restore Previous Browser Session After System Crash

Rarely some users find, Firefox doesn't restore the previous browsing session after a system failure. It is because the browser.sessionrestore.resume_from_crash is configured as false in the configuration window. We need to select true for this to enable this feature. To perform this follow the steps 1 and 2 mentioned above and select true instead of false. After this, you will find no issues to recover previous browsing sessions after a system malfunction.


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