Open-source web browser. Include tag of operating system if it's important/dependent.

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8
votes
4answers
10k views

Why is my browser using so much memory?

I've recently had problems with Firefox running very slowly when I have many tabs open; say 20 tabs. My whole system would slow down. I decided to give Google Chrome a try, and it started out fine. ...
8
votes
4answers
3k views

Can I convert an existing Firefox installation to ESR without a re-install?

It took some jumping through hoops (including a mailing list subscription that I apparently didn't need) but I finally found where to download the Firefox ESR. This is great for fresh installs, but I ...
8
votes
1answer
2k views

Middle click tab opening stopped working in Firefox

Today I booted up my PC, opened Firefox, and went through my usual habit of going to some pages, middle clicking every interesting new link to open it in a new tab, and then casually working my way ...
8
votes
1answer
2k views

How to prevent Firefox from hiding the 'http://' URL prefix?

I upgraded to Firefox 7.0.1 and the 'Google Shortener' stops working. I think this happens because in Firefox 7.0.1 the http:// URL prefix is now hidden by default. How do I get the http:// back in ...
8
votes
1answer
2k views

Create Firefox Profile via Command Line

Is it possible to create Firefox profiles via the command line? I need to programatically launch Firefox with different proxy settings. From my understanding, I can do this via creating a profile. ...
8
votes
3answers
901 views

Cannot browse any stackexchange sites using FireFox without clicking through 5-10 “moz-proxy” popups on each page

I am experiencing a very annoying problem with FireFox 11.0 on Windows XP SP3, and unfortunately it is making it very difficult to use one of my favorite sites!!! This problem appeared several weeks ...
8
votes
2answers
372 views

What do the acronyms mean after the slash in the Firefox dictionary?

What do these capital letters mean after the / character in the en-US.dic file found in the \Firefox\Dictionaries folder? For example: collectivism/M collectivist/MS collectivity collectivization/M ...
8
votes
4answers
9k views

How to save the currently opened tabs (URLs) of Firefox into a text file? [duplicate]

Is there a way to save the currently opened tabs (URLs) of Firefox into a text file?
8
votes
3answers
1k views

How do streaming videos download works?

I use Firefox and the Video DownloadHelper plugin to download videos from YouTube, etc. How do these plugins and sites automatically obtain download links for these videos?
8
votes
1answer
2k views

Firefox requests the master password twice

I've set a master password for Firefox. When Firefox starts, it strangely opens two separate password request windows. When I type in the master password and hit enter, Firefox opens without problems, ...
8
votes
4answers
5k views

How can I delete everything in my Firefox history older than N days?

I set FireFox to store my history for 90 days, and I think this is slowing down the AwesomeBar. I set it to store history for 45 days, but I don't know how to delete everything in my existing history ...
8
votes
3answers
59k views

What is the modern day equivalent of Firesheep?

Firesheep came out on the scene in 2010 and rocked the world... and never made it to version 1.0. Mozilla has since released 15 major versions of Firefox and is incompatible with the extension. Is ...
8
votes
1answer
487 views

What is the Shortcut Key for the Firefox Orange Button?

What is the Shortcut Key for the orange button at the upper left portion of the Firefox 4 window? I tried ALT+F, but this only brings up the hidden "File" menu.
8
votes
2answers
2k views

Is there any easy way to sync your bookmarks using only an ftp-server and some app?

I realize there is already this good question How to sync bookmarks between Firefox, Chrome, and Safari on multiple computers? about bookmark sync, but I am looking for a different solution. It is ...
8
votes
1answer
972 views

Is there a way to determine how much memory each Firefox add-on is leaking?

Is there a way to determine how much memory each Firefox add-on is leaking? I found a similar thread on SU here but it is several years old and pretty much all of the add-ons mentioned are no longer ...
8
votes
3answers
20k views

chrome and firefox temporary files in macosx

in ubuntu both Chrome and Firefox stores temporary files in /tmp . Now im using MacOsx and i dont know where to find Temporary files, such as flv videos, do you know something about it ?
8
votes
4answers
7k views

How to run Firefox in Protected Mode? (i.e. at low integrity level)

I noticed that Firefox, unlike Chrome and Internet Explorer, doesn't run in the Low Mandatory Level (aka Protected Mode, Low Integrity) Google Chrome: Microsoft Internet Explorer: Mozilla ...
8
votes
2answers
2k views

How to set up Firefox to absolutely never to delete any history items?

Is there a way to set up Firefox in a way that it absolutely never removes any items from its history (automatically)? In the past maybe there were a 'keep all history items', then you could set it ...
8
votes
5answers
42k views

Change the audio output device in Firefox

I'm trying to play music through Ventrilo and currently I use Virtual Audio Cable. The way it works is that in foobar2000 (a music playing program) I set the output device in preferences to Virtual ...
8
votes
7answers
2k views

faster alternative to firefox tab groups

I had about 200 tabs open in about 15 tab groups. Needless to say, Firefox wasn't lightning fast (even with the "don't load tabs until selected" option checked). The solution that dramatically ...
8
votes
3answers
4k views

How can I set different taskbar icons for Firefox profiles in Windows 7?

Is there a way to have different taskbar icons for two different Firefox profiles? I have two shortcuts which point to bat scripts which launch Firefox profiles in following manner: start "" ...
8
votes
1answer
1k views

How to setup keyboard shortcuts to bookmarklets in firefox?

i'm using the wonderful bookmarklet Readability by Arc90, and it's been useful to the point where i almost always load it on pages i intend to read. I'm using firefox 3.5 and/or 3.6 (depends if i'm ...
8
votes
6answers
23k views

ajax.googleapis.com stopping my Firefox

Today for some strange reason, Firefox stops working properly because it is trying to fetch something from ajax.googleapis.com. Is there something I can do to avoid this? Safari and Chrome work just ...
8
votes
2answers
3k views

How to make Google Chrome's tabs behave more like Firefox?

Is there a way to have the following in Google Chrome, like Firefox? A right arrow slider to navigate the tabs. A drop down list of open tabs.
8
votes
3answers
2k views

Can't copy paste on the first try

When I try to copy and paste something from firefox to say notepad or word, it doesn't work on the first try. That is I go to firefox, select text, right click, select copy, then switch to notepad, ...
8
votes
1answer
1k views

Chrome suggestions sucks. How to fix like firefox? [duplicate]

Possible Duplicate: Search through bookmark in chrome addressbar? http://wordpress.org/extend/plugins/buddypress/ is the page what i want to see when i type "buddypress" in chrome. I have ...
7
votes
6answers
1k views

Blocking experts-exchange from my Google results and/or computer [duplicate]

Possible Duplicate: Is it possible with Google searches to ban any and all results from a domain? The site experts-exchange is very annoying. How can I block it from my Google results? ...
7
votes
4answers
6k views

Why is the Firefox tabs close button disappearing? How do I get them back?

I've downloaded the new firefox and have a close button on each tab until the number of tabs reaches a certain number. ie if I have Firefox maximised in one monitor, with 7 tabs open I have the ...
7
votes
3answers
7k views

Ruler to measure in browser (firefox)

I'm looking for a good ruler to use to measure distances in a browser. I use Firefox. Any good suggestions that are currently being used by other developers. I have firebug, but I don't think it has ...
7
votes
5answers
5k views

How to open a list of URLs in Firefox or SeaMonkey?

I have a list of URLs in a text file, for example, http://url1 http://url2 http://url3 I wonder how to open them each in one tab in Firefox (or SeaMonkey), without the hassle of creating a new tab, ...
7
votes
3answers
751 views

Preventing Firefox from replacing “open URL” with “Switch to tab”

How can I prevent Firefox from displaying "Switch to tab" under my address bar when I enter a URL I have open in another tab? For example, say I have one jsbeautifier open, and I want to open ...
7
votes
2answers
5k views

Make Firefox automatically set zoom level for new webpages

When Firefox goes to a new webpage I don't want it at 100% zoom but at a different percentage that I specify, and I want it to always use this zoom for all pages that it goes to. How can I do that?
7
votes
5answers
15k views

Website downloader (cache?) to view sites offline

Is there a portable way to download or cache all pages of a website for viewing offline? I have a cross country flight tomorrow, and I'd like to be able cache a few webpages (particularly the python ...
7
votes
8answers
14k views

What can I do to preserve tabs when restarting Firefox?

In the Add-ons window, if I enable/disable an Extension, a yellow bar with a "Restart Firefox" button appears. This tells me "Firefox will try to restore your tabs and Windows when it restarts." I ...
7
votes
5answers
8k views

How do I change the language of Firefox 4?

I've just downloaded Firefox 4. I can't find an option to change the language (I would like to change it from Hebrew to English). EDIT: I'm talking about the language of the browser user interface. ...
7
votes
4answers
16k views

Does Chrome use a different DNS server from Firefox and IE which use the OS default?

Is the common set up for Chrome that it will use a different DNS server, while Firefox and IE will use the OS networking default? My Chrome (including one on virtual PC) will sometimes show ...
7
votes
5answers
11k views

Why does Firefox cause high-CPU-usage “spikes” every few seconds?

When I start Firefox, I have no problems for a while, but after a couple of days, CPU spikes start to occur. During a spike, Firefox freezes and then stops. Spikes occur every seven to ten seconds, ...
7
votes
2answers
5k views

Is there a Google Chrome extension that acts like Firefox's keyword quicksearch bookmarks?

I'm trying out Chrome, but I use this Firefox feature all the time so I strongly feel its absence. I've searched Extensions and Google in general, but couldn't find anything and don't even know if ...
7
votes
4answers
4k views

How do I mask the Firefox browser signature?

Does anyone know of a way to mask the Firefox browser signature, so that it looks like Internet Explorer to the rest of the world? I know there is a plugin to use the IE rendering engine, but that ...
7
votes
6answers
4k views

Vimperator and Ctrl+K

This is related to my other question about copy/pasting in Vimperator. In normal Firefox, Ctrl+K gives the focus to the search bar. How can I do this in Vimperator? The weird thing is that it ...
7
votes
3answers
3k views

How to make the about:blank page black or any other color in Firefox?

Is there a built-in way in Firefox to blacken or to colour the about:blank page? Will I maybe save some energy by doing so?
7
votes
7answers
1k views

how to throttle http requests on a linux machine?

EDIT: here is the summery: i need to reduce max connections preferably system wide on Ubuntu 11.04 but at least within Google Chrome. i do not need or want to throttle bandwidth, Verizon seems to only ...
7
votes
2answers
3k views

How to make high performance cluster out of 2 laptops I have at home [duplicate]

Possible Duplicate: Is it possible to combine processing power of 2 computers? Hi, I have 2 laptops at home. Could someone please suggest some free cluster softwares using which I can make ...
7
votes
2answers
2k views

Create a desktop shortcut for a group of bookmarked tabs in Firefox?

Is there a way to create a desktop shortcut to a group of bookmarked tabs in Firefox? To explain further: creating a desktop shortcut to a bookmark is easy - at the simplest you can just drag the url ...
7
votes
4answers
3k views

How can I block social share buttons in webpages [duplicate]

Possible Duplicate: How to block annoying facebook and other social network widgets A great many pages have these "Like", "Tweet", "G+1", "share" row of buttons all over the place and in ...
7
votes
2answers
2k views

Firefox is capturing Ctrl + Shift + g from Eclipse

I use Eclipse and Firefox on Windows 7. Ctrl + Shift + g in Eclipse is supposed to do a search for references, but instead it does a Google search in Firefox. Why is this happening, and how can I ...
7
votes
4answers
2k views

Check CPU usage by tab or by add-on on firefox on mac

My version of Firefox has a runaway process/thread that makes it use 100% cpu on my MacBook Pro (OSX 10.7.4) after a few minutes. I've tried to use about:memory and about:addons-memory to try to ...
7
votes
4answers
3k views

Tool to highlight and annotate text on websites?

When I read something I need to underscore what I like, or what I think is important, and to take notices about that read, near on that current paragraph. So, does anyone know a Firefox add-on or ...
7
votes
2answers
2k views

Copy rectangle selection in firefox

How do I select a rectangular area of text in firefox? My goal is to copy some columns from a html table. I would like to select only the b and c columns (b1,c1,b2,c2 values) for this table: ...
7
votes
8answers
10k views

Full-screen mode in Firefox on Mac OS X?

Does anyone know of a solid solution for adding a full-screen mode to Firefox (3.5) on OS X? I've come across a few possibilities involving either Javascript bookmarklets or outdated add-ons, but ...