I'm doing some development for some pages on our internal network. I want to know if there's an open source tool or FF plugin which can identify unused css within a project.  I've looked at using this, but when I try to install the Add-on Installer says "Not compatible with Firefox 3.6"    Please note, this is for an intranet - not a www visible website - so I can't use the online sites which offer such services.
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A bunch of CSS files were pulled in and now I'm trying to clean things up a bit. How can I efficiently identify unused CSS definitions in a whole project?
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Often, from different remote hosts, FileZilla will download a .cssor .php file and insert blank lines in between existing lines. This destroys nice formatting.  PC = Windows 10 Pro 64-bit.  How do I prevent this?
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Since when going after the road-map, firefox 57 will be released on 14.11.207.   Now my problem is that I use a whole lot of legacy add-ons I want to keep working with.   So how can I prevent firefox from updating via the repositories?
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I have to refactor a large C# application, and I found a lot of functions that are never used. How can I check for unused code, so I can remove all the unused functions?
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I used to use an extension to hide/show the title bar in Firefox, but since Firefox 57 was released most of the extensions were disabled.  In Chrome I just uncheck the option "Use system title bar and borders" and it's done.  Are there any ways to do that?
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Stack Overflow provides good tools in the question editor, like "Links" and "Styling".  Another thing that for me would be nice is a color selector. Although an HTML editor is available, a direct click on tool would be good, and users can select different colors, as for marking errors in their program with red, and more important data with blue.
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I have a VF page built on Lightning Design system (LDS) framework. When I add the renderAs="PDF" attribute, pdf does not show the content with LDS CSS/Style.  Reference Link:   Note1: apex:page tag has all the usual attributes which is required for pdf *     (showHeader="false" sidebar="false" standardStylesheets="false"   docType="html-5.0" applyHtmlTag="false" applyBodyTag="false")   Note2: Salesforce supports external stylesheet. That is, CSS file stored in Static resource. Link of example:   I also copied the whole css content from the LDS CSS file (Path: 'assets/styles/salesforce-lightning-design-system-vf.min.css') and applied as inline CSS in VF page. But still, there is no luck.  My styleSheet is referred in VF page as below  apex:stylesheet value="{!URLFOR($Resource.SLDS221,      'assets/styles/salesforce-lightning-design-system-vf.min.css')}"   Page works absolutely fine if it is not rendered as PDF.  Any suggestions?
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I've been searching some of the morning today and am unable to find a 'Greasemonkey' type program for IE8.  I have a horrendous 'Incident Monitor' ticket app at my company and it looks like it was developed for tiny screens and IE5, I would like to get some control over this mess.  Greasemonkey would work but app won't allow FF, one of those IE-only things.  I'm looking to be able to modify some styles / add to styles / view.
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I have recently analysed my website with pagespeed addon on firebug. It suggested me to set expiration on CSS, JS and image files.  I am wondering how do i do this?
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I'm currently analysing some landing pages with the URL inspection tool of the Search Console, and most of them look to be not loaded (script and css). The main reason announced by Search Console is: other error (without any more information).  I was thinking the problem might be that the scripts are too complex, but some of them are very simple.
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This is driving me crazy! When FF 12 came out, Firefox's own 'Inspect Element' button on the right-click menu took the place of there the Firebug 'Inspect Element' button used to be.  As I've been doing web development in Firefox forever, my muscle memory still clicks there when I want to use Firebug.    Is there any way to remove the Firefox internal 'Inspect Element' and replace the button on the menu with Firebug's, returning it to its original position (marked NO in the screenshot)?
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How do I make the cross-browser (including Internet Explorer 6) transparency for the background of a div while the text remains opaque?  I need to do it without using any library such as jQuery, etc. (But if you know of a library that does it I'd love to know so I can look at their code).
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I'm the maintainer for .  Markup authors can specify the language for source code, but not markdown authors. Are the SO admins interested in a way of doing this?  If so, might the following work   If the first line is "#!" followed by one or more word characters, then make the first line invisible (using CSS hidden:visible) and use those word characters as the file extension. Otherwise, use the current scheme.   So  #!css tag.class#id { color: red }   would be recognized as CSS.  In markdown, should any indicator of line numbers survive copy-paste in markdown?  Does any scheme like this need to do work to handle quoting of responses in markdown?  Is it common for inline responders to split code sections?  Do users also want to number lines (  ), so that others can respond with reference to particular lines?
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I was browsing the html of my favorite site...ahem...and I saw this in the markup:  &lt;link href="/Content/all.min.css?d=20090107" rel="stylesheet" type="text/css" /&gt;   what does "?d=20090107" do? I'm assuming it's a date of some kind, but I'm not sure why it's in the path to the file. Any ideas?
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Is it possible to import css stylesheets into a html page using Javascript? If so, how can it be done?  P.S the javascript will be hosted on my site, but I want users to be able to put in the &lt;head&gt; tag of their website, and it should be able to import a css file hosted on my server into the current web page. (both the css file and the javascript file will be hosted on my server).
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I wish to review my Firefox Extensions, specifically I want to know the date when I installed all my extensions. Is this possible?  I know about  support article but it's not helpful.  And I know about about:addons
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I want to explain my problem with Images and Links,but I don't have reputations so I posted same question in the following link.    can check it and suggest me. Thanks  I am using Ubuntu 12.04.I tried to open this .I got the page in the following way. I searched some forums, one guy suggested Ubuntu not supported to silverlight so you need to install moonlight.  so I downloaded moonlight from this .I installed in the following way   Open Firefox and drag and drop the file into Firefox.it shows successfully installed.   I reopen Firefox and reopen these same .It showing blank page(white page).like this   How can I fix this, can anyone suggest me  Thanks.