Firefox on Amit Agarwal Linux Blog

Firefox addons for hacking

Sat, 23 Apr 2022 00:00:00 +0530

#Firefox addons

Here are some good and useful addons for hacking. I have mentioned some old addons which are quire good but not to be found on firefox addon site :(

Sandbox Firefox – First step to security

Wed, 19 Mar 2014 01:21:04 +0000

First we will setup cgroup to limit cpu and memory usage, so here we go:

Add the configuration in /etc/cgconfig.conf

#------start cgconfig----------------
#new group
group firefox {
    perm {
        task {
#user your login id and group here, so that you can control this group
        uid = amitag;
        gid = amitag;
        }
        admin {
# same as above, set to your login id and group.
           uid = amitag;
           gid = amitag;
        }
    }
# set the limits for cpu.. by default there are 1024 shares of cpu with no other groups,
# so share of 102 would be around 10% .
    cpu{
        cpu.shares="102";
    }
# limit the cpus to be used to only 0-1
    cpuset{
        cpuset.cpus=0-1;
        cpuset.mems=0;
    }
# limit the maximum memory to 700Mb.
    memory {
        memory.limit_in_bytes="700M";
        memory.max_usage_in_bytes="0";
    }
}
#------end cgconfig----------------

cgroups – use to control your cpu and memory

Mon, 06 Jan 2014 00:33:23 +0000

cgroups is a kernel feature and with userspace utilities, we can use the feature to control the cpu and memory for per process. So, lets first install the required tools.

sudo yum install libcgroup-tools

Now, we need to enable the service.

sudo systemctl enable cgconfig.service
sudo systemctl enable cgred.service

cgconfig.service is to enable configuration for cgroups and
cgred.service is to enable configuration for cgroups for processes depending on the name.

quick notepad in firefox.

Mon, 20 May 2013 00:53:57 +0000

If you quickly need to note something and you do not want to leave your browser then just add a bookmark to :

data:text/html, <html contenteditable>

and whenever you need to get the notepad, just open this bookmark. Sorry, I do not remember, where I got this from, but this is something that I did not discover but since I do not remember where I got this from, I am not able to credit the authour.

Firefox troubleshooting

Mon, 11 Mar 2013 11:25:50 +0000

Here are few quick tips on getting to see what could be wrong with firefox.

Config entries – about:config

Support Information – about:support

Details on config entries – http://kb.mozillazine.org/About:config_entries

Reset firefox profile – https://support.mozilla.org/en-US/kb/reset-firefox-easily-fix-most-problems

Firefox profiles – https://support.mozilla.org/en-US/kb/profiles-where-firefox-stores-user-data

Taking screenshot in firefox.

Sun, 03 Feb 2013 00:33:05 +0000

Couple of days back, I was trying to take screenshot with Firefox. As usual I started out with searching for plugins which could take a screen shot for the whole page and not just the visible portion of the page. Installed couple of them, some did not work. Finally I found something called Development Bar.

So, here is a simple way to take a screenshot. Press “Shift+F12”. This will bring up a bar in the bottom of the firefox window. To take a screenshot, type:

pdfjs – html5+javascript based pdf viewer for Firefox.

Wed, 05 Sep 2012 12:25:26 +0000

Firefox 15 has arrived and there is lot to brag about. Since there are already many blogs on this, so just giving you a link to one of those. But what is most interesting is the integration of PDF.js. It is a new html5 + javascript based pdf viewer.

GHacks Link

And to enable this viewer all you need to do is go to “about:config“. Search for pdfjs and set pdfjs.disabled to “FALSE” and your browser is all set to use the inline pdf viewer.

Manually remove all the duplicate bookmarks in Firefox

Tue, 13 Sep 2011 15:03:52 +0000

Image by Getty Images via @daylife

I was trying to install the duplicate Bookmark remover for the Firefox but for some reasons, was not able to install it. That apart, the point is that I was trying to get a program to do this for me rather than a plugin. So, after some search, finally I found here. This is a ruby script. The script requires ruby gems-json for doing this.

Fast and bleeding edge Firefox.. version 7

Thu, 30 Jun 2011 01:19:39 +0000

Firefox 7.0 nightly builds have started and it seems to be quite fast. So, if you dont care about some sites not opening or once in a while your browser crashing, been using for 2 days on Windows , has not crashed so far and worked on all sites so far :), then you should install the Nightly build.

Head over to the nightly build site and install the appropriate build for your OS.

Speed Up Firefox by Moving Your Cache to RAM

Sat, 08 Jan 2011 15:11:23 +0000

Speed Up Firefox by Moving Your Cache to RAM, No RAM Disk Required [Firefox Tip] Click here to read Speed Up Firefox by Moving Your Cache to RAM, No RAM Disk Required We’ved talked about moving your cache files to a RAM disk to speed things up, but it turns out Firefox has this feature built in. Here’s how to turn it on. More »

Firesheep addon allows the clueless to hack Facebook, Twitter over Wi-Fi

Sat, 13 Nov 2010 03:51:20 +0000

Firesheep addon allows the clueless to hack Facebook, Twitter over Wi-Fi If you thought hijacking a user’s social media session was only done by skilled hackers, now the Firesheep addon can allow even the truly clueless to become an Internet griefer.

URL: http://feeds.digg.com/~r/digg/topic/linux_unix/popular/~3/cb0qD08tfpU/firesheep_addon_allows_the_clueless_to_hack_facebook_twitter_over_wi_fi

Firesheep – a new tool for capturing data on unsecured WiFi (voipsa.org)
Firesheep: Why You May Never Want to Use an Open Wi-Fi Network Again (blogs.forbes.com)
Firesheep session hijacking tool makes public Wi-Fi useless (gizmag.com)
Firefox Add-on Firesheep Brings Hacking to the Masses (pcworld.com)

Change the firefox theme without restarting.

Mon, 27 Sep 2010 15:00:41 +0000

How often you wished that you could change the theme for firefox without restarting. Well sometime back Mozilla came up with Light weight themes called personna’s but if that is not sufficient for you and you still want to change the theme and do not want to restart then you should install this theme.

Once you install this theme, you will not note any change (Don’t forget to restart after installing the theme.)

Unixmen - Tips to reduce memory usage on Firefox

Wed, 14 Jul 2010 01:06:32 +0000

A nice aritcle on reducing the memory usage of firefox on <a class="zem_slink" title="Linux" rel="wikipedia" href="http://en.wikipedia.org/wiki/Linux">Linux.

There are some things in life everyone is looking for and no one ever finds and there are other things that people keep finding and re-finding and inventing and re-inventing. Reducing memory usage for <a class="zem_slink" title="Firefox" rel="homepage" href="http://www.mozilla.com/firefox/">Firefox and speeding it up is one such thing. So, here is another story to reduce the memory usage of firefox.

Customize Your Firefox Browsing Experience On Your Favorite Websites

Wed, 23 Jun 2010 04:33:20 +0000

<a href="http://blog.amit-agarwal.co.in/category/linux/">Bookmark this category

<img SRC="http://blog.amit-agarwal.co.in/wp-content/uploads/2010/08/screenshot.151.jpe" ALIGN="bottom" ALT="screenshot.15"/>Did you know that you can customize the way you see a website in your browser? We’ve all heard of the <a HREF="http://www.makeuseof.com/tag/greasemonkey-firefox-addon/">Greasemonkey add-on for Firefox, right? If not, check out the articles <a HREF="http://www.makeuseof.com/tag/20-must-see-greasemonkey-addonsno-technical-knowledge-req/">that <a HREF="http://www.makeuseof.com/tag/6-cool-greasemonkey-scripts-to-rock-your-friendfeed/">have <a HREF="http://www.makeuseof.com/tag/how-to-turn-greasemonkey-scripts-into-firefox-extensions/">been <a HREF="http://www.makeuseof.com/tag/top-ten-flickr-greasemonkey-scripts/">written here on MakeUseOf and you’ll be sure to find out some neat stuff about it.

Basically, Greasemonkey allows users to write and implement scripts that customize the way you interact with websites.

17 Cool firefox tweaks.

Wed, 16 Jun 2010 02:17:02 +0000

A very nice article on firefox can be found here. Though written for Ubuntu should be applicable to all distro’s.

<a href="http://www.ubuntu-inside.me/2009/07/17-cool-firefox-aboutconfig-tricks.html">http://www.ubuntu-inside.me/2009/07/17-cool-firefox-aboutconfig-tricks.html

Most of it was done in my machine even before I read the article but good to see all of them together 🙂

FastestfoxLite - Disable prefetching and make firefox really fast.

Mon, 14 Jun 2010 14:03:06 +0000

If you are stuck with firefox performance, then you should try this addon:

https://addons.mozilla.org/en-US/firefox/addon/9148/<h6 class="zemanta-related-title">Related articles by Zemanta <ul class="zemanta-article-ul"> <li class="zemanta-article-ul-li"><a href="http://blog.taragana.com/index.php/archive/how-to-make-firefox-blazing-fast-in-a-jiffy-fasterfox-add-on/">How to make Firefox blazing fast in a jiffy: fasterfox add-on (taragana.com) <li class="zemanta-article-ul-li"><a href="http://www.cloudspace.com/blog/2010/06/03/html5-link-prefetching-or-the-most-dangerous-tag/">HTML5 Link Prefetching (or ”The Most Dangerous Tag”) (cloudspace.com) <li class="zemanta-article-ul-li"><a href="http://www.ghacks.net/2010/05/15/configure-prefetch-and-superfetch-with-tweakprefetch/">Configure Prefetch and Superfetch With TweakPrefetch (ghacks.net) <li class="zemanta-article-ul-li"><a href="http://www.ghacks.net/2010/06/10/fix-firefox-with-last-pass-not-responding/">Fix Firefox With Last Pass Not Responding (ghacks.net) <div class="zemanta-pixie"><a class="zemanta-pixie-a" title="Enhanced by Zemanta" href="http://www.zemanta.com/"><img class="zemanta-pixie-img" src="http://blog.amit-agarwal.co.in/wp-content/uploads/2010/08/zemified_c2.gif" alt="Enhanced by Zemanta" /><span class="zem-script more-related more-info pretty-attribution paragraph-reblog">

They own your CPU (and so so in Windows and Mac, too)

Sun, 16 May 2010 15:53:18 +0000

Click: ”I laugh — LAUGH! — when a tech journalist writes something to the effect of, ”for lightweight tasks such as Web browsing,” when you know, and I know, that there ain’t nothing light about using present-day Web browser on present-day Web pages filled with Javascript, Flash and enough CSS to fill a book.”

URL: <a href="http://linuxtoday.com/news_story.php3?ltsn=2009-10-22-030-35-OP-HW-SW">http://linuxtoday.com/news_story.php3?ltsn=2009-10-22-030-35-OP-HW-SW<h6 class="zemanta-related-title" style="font-size: 1em;">Related articles by Zemanta <ul class="zemanta-article-ul"> <li class="zemanta-article-ul-li"><a href="http://www.noupe.com/jquery/35-fresh-useful-jquery-plugins.html">35 Fresh and Useful jQuery Plugins (noupe.com) <li class="zemanta-article-ul-li"><a href="http://lifehacker.com/5376222/firefox-36-beta-scheduled-for-next-week">Firefox 3.6 Beta Scheduled for Next Week [Updates] (lifehacker.com) <li class="zemanta-article-ul-li"><a href="http://www.wisdump.com/web-experience/3-nifty-browsing-features/">3 nifty browsing features that should be on every site (wisdump.com) <div class="zemanta-pixie" style="margin-top: 10px; height: 15px;"><a class="zemanta-pixie-a" title="Reblog this post [with Zemanta]" href="http://reblog.zemanta.com/zemified/4094c4e7-74b7-4826-9095-0306e76f7c8e/"><img class="zemanta-pixie-img" style="border: medium none; float: right;" src="http://blog.amit-agarwal.co.in/wp-content/uploads/2010/08/reblog_e9.png" alt="Reblog this post [with Zemanta]" /><span class="zem-script more-related pretty-attribution">

Firefox 4.0 mockups for LInux/Windows and Mac

Tue, 11 May 2010 16:27:47 +0000

https://wiki.mozilla.org/Firefox/Projects/3.7_and_4.0_Theme_and_UI_Revamp

The link above will take you to the Mozilla wiki for the UI and theme mockups for the Firefox 4.0 release. Quite interesting but what I did not like is that the Linux mockup looks more like chrome. Not sure why mozilla would want to do that 🙂

Tabs-on-top: Defaut tabs to top of UI.
Hiding the Menu Bar: Hide the menu bar and add Page and Tools buttons.

The post is brought to you by <a href="http://fedorahosted.org/lekhonee">lekhonee-gnome v0.9<h6 class="zemanta-related-title">Related articles by Zemanta <ul class="zemanta-article-ul"> <li class="zemanta-article-ul-li"><a href="http://www.engadget.com/2010/05/10/mozilla-shares-tentative-vision-for-firefox-4/">Mozilla shares tentative vision for Firefox 4 (engadget.com) <li class="zemanta-article-ul-li"><a href="http://news.slashdot.org/story/10/05/11/1222211/Mozilla-Reveals-Firefox-4-Plans?from=rss">Mozilla Reveals Firefox 4 Plans (news.slashdot.org) <li class="zemanta-article-ul-li"><a href="http://www.techmeme.com/100511/p7">Mozilla’s Plans for Firefox 4: Faster, Sleeker Interface & Better Privacy Controls (Frederic Lardinois/ReadWriteWeb) (techmeme.com) <li class="zemanta-article-ul-li"><a href="http://www.techmeme.com/100510/p67">Firefox 4: fast, powerful, and empowering (Mike Beltzner/beltzner) (techmeme.com) <li class="zemanta-article-ul-li"><a href="http://blogs.chron.com/techblog/archives/2010/05/firefox_4_coming_soon_beta_as_early_as_june_1.html">Firefox 4 coming soon; beta as early as June (blogs.chron.com) <li class="zemanta-article-ul-li"><a href="http://r.zemanta.com/?u=http%3A//www.cbsnews.com/8301-501465_162-20004666-501465.html&a=17869870&rid=73c491d4-0778-448a-ba05-b7758f91e1c9&e=e813a95fa56524108572b5f7c80e8075">An Early Look at the Next Version of Firefox (cbsnews.com) <div class="zemanta-pixie"><a class="zemanta-pixie-a" title="Reblog this post [with Zemanta]" href="http://reblog.zemanta.com/zemified/73c491d4-0778-448a-ba05-b7758f91e1c9/"><img class="zemanta-pixie-img" src="http://blog.amit-agarwal.co.in/wp-content/uploads/2010/08/reblog_b85.png" alt="Reblog this post [with Zemanta]" /><span class="zem-script more-related more-info pretty-attribution paragraph-reblog">

change the window in split screen.

Sun, 11 Apr 2010 09:12:00 +0000

I use the split screen in vim very in-frequently, so I did not really know how to move from one screen to the other. There is also very little or no documentation that I found on this on the first page of google, so here it is :
press ”ctrl+w and ctrl + w” to change to other window.

If you are not sure how to get the split screen, then you can type help split in vim to get the help on split screen.

Linux Links — collection of universe.. all links on everything about linux

Sun, 11 Apr 2010 09:11:46 +0000

<a href="http://loll.sourceforge.net/linux/links/">LoLL is a sourceforge project which maintains a well commented and categorized list of links on linux. This is a very nice list and has very nice links. Probably there is nothing that you will not find here which do not interest you. Definately worth a look.

x-marks saving lives.

Thu, 04 Feb 2010 15:58:48 +0000

Couple of days back my TeraByte HDD crashed and I lost almost everything, including my homedir. I will tell you my experiences and how my measures helped me lose not much data. So I will begin with one of the most important aspects. My BROWSER.

I have all my passwords stored in the browser and I rely on them so it is not stored anywhere else. Also, I have lot of bookmarks which help me do lot of stuff. Meaning, all these are very important for me. So, I had a backup plan for my passwords and bookmarks.

feedly– addon for firefox if you have a lot of subscriptions for Google reader.

Tue, 23 Jun 2009 02:49:53 +0000

Download feedly <a href="https://addons.mozilla.org/en-US/firefox/addon/8538">here. Feedly is the way to go if you have lot of subscriptions or otherwise too if you would like to see some changes in the way the google reader looks. Here’s the description:

A magazine-like startpage. A fast and stylish way to read and share the content of your favorite sites and services. Provides seamless integration with Google Reader, Twitter, Frienfeed, Delicious and YouTube.

and a screenshot: