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

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3
votes
3answers
9k views

How to turn web pages in browser into black & white (Grayscale)?

How can I turn all colours of web pages into simple black and white, on my web browser? Which browsers support this (Chrome, Internet Explorer, or Firefox)? Is this even possible?
3
votes
1answer
4k views

Checking Firefox version using cmd returns an error

On checking the version of Firefox using firefox -v, I get the following error. (process:12746): GLib-CRITICAL **: g_slice_set_config: assertion 'sys_page_size == 0' failed Mozilla Firefox 31.0 I ...
0
votes
0answers
44 views

Adware plague in the apartment [duplicate]

Several computers in my apartment have all come down with this odd adware outbreak! A window on the right side of the screen pops up called "around the web" and has three ads listed. If I browse ...
0
votes
2answers
488 views

How to swap Next & Previous buttons in Firefox Quick Find bar

I use Firefox 100% of the time on *nix systems. For now I will need to stick with Windows environment and Firefox there has Next and Previous buttons swapped: It feels really uncomfortable. ...
1
vote
2answers
2k views

Why are all links suddenly purple (visited)?

How do web browsers remember which links have been clicked (and thus, color them purple/differently)? As of this week, all links in my Google searches have suddenly turned purple, as if they've all ...
0
votes
0answers
18 views

How to sync everything between Firefox profiles except tabs?

I want to create two Firefox profiles which are identical, except the tab saving. When creating the new profile, I select the directory for the existing profile. However, when I open the new profile, ...
6
votes
3answers
5k views

Flush Chrome and Firefox DNS cache from command line?

Occasionally, I need to do a scorched Earth cleansing of my local DNS cachi. The most common scenario for this was that I was using OpenDNS, and when a name would fail to resolve (it was a hostname ...
5
votes
2answers
2k views

How to remove User-Agent for Firefox

How to remove User-Agent for Firefox The goal is to remove this header from all web requests, in case you don't want sites to know which OS are you using.
3
votes
1answer
2k views

“Source file could not be read” error when downloading a file with Firefox

I am attempting to download a file with Firefox and I see this error: C:\Users\Lynda\Desktop\Sample.psd.zip.part could not be saved, because the source file could not be read. Try again ...
0
votes
0answers
46 views

FireFox's Session Manager not saving last closed tabs

I currently have 40 tabs on my session. Since a few weeks ago, Session Manager stopped saving the last closed tabs. When I right click a tab and go to Closed Tabs List, I'm presented with a very big ...
2
votes
1answer
5k views

High CPU usage from Firefox and poor overall performance

I typically use Chrome, but recently tried giving Firefox another chance after not having used it in a year or two. It has some nice features that make it very attractive over Chrome (like better ...
17
votes
5answers
11k views

How can I add a Firefox bookmark as toolbar button?

I have a bookmark that I use to 'zap colours' from websites: ...
1
vote
4answers
2k views

Is there a way to open a website URL from a text file that lists 600+ URIs via a batch file?

How could I write a Windows batch script that could allow me to open an URL, with a browser—Firefox or Chrome—from a txt file containing all the URIs? The point is: I would like the script to open ...
4
votes
2answers
3k views

How to recover lost add-ons in Firefox?

When I upgraded to Firefox 7, all my add-ons (except for a few) were lost. Is there any way I can recover those add-ons (or at least find out what add-ons I had installed before the upgrade broke ...
2
votes
1answer
3k views

How do I stop Google Chrome from requesting to import Firefox settings on startup?

Every time I start a fresh instance of Google Chrome on my PC, I receive the following message: Sadly, your Mozilla Firefox settings are not available while that browser is running. To import ...
3
votes
7answers
6k views

Skipping the download dialog in Firefox

In Firefox's options, you can either set that you want to be asked where to save every file, or you want it to be in place your favourite directory here, I've noticed that most of the stuff I save I ...
1
vote
1answer
28 views

Double click then pressing control+shift shows a number 1 on a blue background

Recently a new, odd behavior showed up in Firefox. If I double click the mouse, then press control+shift a number 1 on a blue background shows up under the mouse pointer. Visible in the left margin ...
0
votes
0answers
16 views

How do I open PDFs in Firefox without causing an infinite loop of blank tabs?

I have a fresh Firefox install on a Win7 PC without a dedicated PDF reader. I was under the impression that I don't need to install one because Firefox has a built-in viewer. But if I attempt to open ...
1
vote
0answers
21 views

Lock Firefox Settings and Changes / Addons and about:

I would like to lock my Firefox. The quest is: don't let anyone or anything change something on my Firefox. I would like to block any changes (add-ons, settings, prefs). I created: as.js with: ...
0
votes
0answers
13 views

How do I work around servers serving wrong Content-Type for downloads?

Say I'm downloading a zip file. Using curl -I URL -e DOMAIN I can see that the Content-Type is text/html even though the mime-type for the file is correct. This causes Firefox to treat it as an HTML ...
6
votes
8answers
3k views

How to speed up the Smart Location Bar (Awesome Bar)?

The Firefox Awesome Bar is indeed awesome. But, lately I see that it has become slow. On entering some characters it even freezes for a few seconds (freezing the entire browser). Why does it slow ...
1
vote
4answers
1k views

Delete old records from firefox sqlite databases

I have some big sqlite3 databases in ~/.mozilla/firefox/profilename Notably places.sqlite (12 MB) and urlclassifier3.sqlite (33 MB). Is it possible to truncate them and wipe out the oldest records ...
8
votes
6answers
6k 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 ...
5
votes
5answers
1k views

Block a URL at browser level

Does anyone have a solution (that doesn't involve editing the hosts file) to block a particular URL from FireFox? Basic back story is that I'm trying to discipline myself. I'm spending FAR too much ...
0
votes
0answers
33 views

How does ISP know when user force reloads the browser?

Main question: my ISP compresses HTML and images, unless I press Ctrl + Shift + R on Chrome (and Firefox). So, how does the ISP know that I forced a refresh? Full story: I recently switched to ...
-1
votes
0answers
8 views

My Linux system starts freezing and CPU spiking sometimes when viewing media in Firefox until I reboot, how can I debug this?

Firefox will be maxing out CPU and freezing intermittently on a site like Pinterest. A youtube video may freeze for example with Firefox using a huge amount of cpu for several seconds and the fans ...
2
votes
2answers
6k views

How to change link colors in Firefox and Chrome, but leave all other color and fonts as they are?

Some people who suffer protanomaly can hardly distinguish red text from black text on computer screens. Many web pages like AskUbuntu.com show visited and unvisited text links in red'ish colors. That ...
9
votes
4answers
5k views

Tool to highlight and annotate text on websites? [closed]

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 ...
2
votes
3answers
189 views

Setting homepage in Firefox only on first opened window

I like to have a homepage when I open Firefox. That's fine; it's set. But if I open a new window with Ctrl + N Firefox loads the homepage in the new window as well. I would like it to be a blank ...
0
votes
1answer
1k views

How to access the Firefox history remotely

I want to monitor the Firefox history of a PC from another remotely. Is there any add on or something else which exports and uploads / syncs Firefox history to an FTP server so that I can access it ...
3
votes
3answers
741 views

Is it possible in Firefox to always hide the title for one website?

I always visit one website which I don't want others to see the title of. I want that whenever I open that site my title of that site changes to something else or hide. There is a addonon in Firefox ...
1
vote
4answers
417 views

Using Firefox Pocket addon with Pentadactyl

I'm using Pentadactyl, a Firefox plugin which emulates vim-style keybindings and browsing. I've recently been interested in using Pocket with 'Automatically make all saved pages available offline' ...
1
vote
3answers
4k views

Black screen when attempting to watch videos on cbs.com

As of about three weeks ago, I haven't been able to watch streaming videos from cbs.com. I don't remember making any changes to my system configuration around that time. When I try to load any ...
0
votes
0answers
13 views

Firefox Awesome Bar show only web search suggestions

Web search suggestions in the Firefox Awesome bar show up under bookmarks, history, and open tabs. This is useful when I want to go to a page that I frequently go to, however, when I'm doing a web ...
0
votes
0answers
16 views

CentOS 7 - low volume on Chrome

I use Google Chrome on a regular basis, but lately all audio played through it has VERY low volume. Playing the same audio stream (i.e. YouTube!) on Mozilla Firefox is normal. I already went to ...
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 ...
8
votes
2answers
4k views

Firefox is only slow on Google. Fast on other sites

The girlfriend's computer is giving me a headache. It's a relatively new computer, less than a year old, Windows 7. She connects over wi-fi to Uverse. She uses Firefox, the latest version and has the ...
8
votes
1answer
4k views

How do I use the Google data compression proxy on Firefox?

I am using GNU Icecat (GNU version of Mozilla Firefox) on Trisquel GNU/Linux. In order to minimize/optimize data usage while web surfing, I want to use Google's data compression proxy. So, how do I ...
9
votes
3answers
5k views

How to remove distro-specific “branding” from Firefox in Linux Mint

I just switched from Ubuntu to Mint and I'd like to remove the Mint-branded Google custom search "feature" which does some strange things to the styling of the results page. I went into Synaptic and ...
9
votes
6answers
2k 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? ...
0
votes
0answers
255 views

“Error: no display specified” when attempting to run Firefox

When attempting to run Firefox from the Linux command-line I get the following error: Error: no display specified Can anyone tell me what's going on and how to fix this so I can load Firefox? ...
0
votes
1answer
169 views

Firefox: Firefox Sync and Zscaler Firewall/Proxy not working

our network as been recently upgraded with the zsacler proxy solution. I was able to regain internet access by following that thread Firefox: This connection is untrusted + Behind corporate firewall. ...
1
vote
1answer
34 views

“Reported Web Forgery” message on one install of Firefox but not another

On my 64bit Windows 7 machine running latest version of 32bit Firefox I received the following message when visiting a URL from an email... in order to check it out further, I loaded firefox on a ...
0
votes
1answer
25 views

Passing http link to vlc as command line argument

When I type vlc http://192.168.1.2/new video.mkv into cmd, vlc tries opening two files. The first is http://192.168.1.2/new and the other is video.mkv. Is it the space in the file name that is causing ...
10
votes
2answers
1k views

Bypass Google's tracking links

Google has an annoying practice of sometimes using tracking links, so when you click on a search result, you are first directed to a Google URL that silently gathers stats, then redirects you to the ...
-1
votes
0answers
9 views

Webpages have links that either do not work or loop when clicked

I use Windows 10 Home Premium-32 bit, Firefox (latest version). Everything on my pc is up to date, java and JavaScript are enabled. I have reset Firefox (then uninstalled and reinstalled when that ...
0
votes
1answer
81 views

How to force to restart firefox in a clean way?

Many times when I upgrade the system under Linux, firefox pops up a window suggesting to restart the program in order to make effective all the changes. When I ignore that windows because of an ...
-1
votes
1answer
79 views

How can I add a certificate exception for an HSTS-protected site in Firefox?

I'm extremely irritated with Firefox's constantly blocking lastpass.com . It is a well known website that stores all my passwords. I need that website to access hundreds of websites. Side note: ...
0
votes
2answers
157 views

Troubleshoot WebGL Support in Firefox 44 / OSX 10.11.3

I am using a 13" Macbook Air 2014 with a 1.7Ghz Intel Core i7 (Intel HD 5000 Graphics). WebGL support seems to be disabled in the latest version of Firefox. Running the simple code snippet ...
0
votes
1answer
15 views

How to force Firefox suggest a specific link when typing a character?

For example, when I want to go to www.getpocket.com, my mind only remember the product name (Pocket), not the actually URL. When I typing poc, the first suggestion is the link that I want to go, but I ...