why is yslow not showing the page load time - performance

so I installed yslow firefox extension and it's on my statusbar...but it's not showing any page load time info and just says 'yslow' whenever I go to any page
do I have to do some configuration or something?
what am I doing wrong?

Check the YSlow User Guide for a walk-through of using the Firefox extension.
If you're having trouble making the Firefox extension work, you can also try the bookmarklet version.

Activate the Fire bug by hitting F12 key and after that you will be able to view the response time along with YSlow icon in status bar.

Related

Firebug showing wrong UI

I am facing a strange issue related to Firebug in my Firefox.
I have Mozilla firefox installed (51.0.1 [32-bit]) in my Windows machine and I have Firebug 2.0.18 installed, but when I click the Firebug button to open it up, it is sometimes showing the default developer tools which Firefox provides. Below are the screenshots to look at what I am getting:
But I want something like this:
Can someone guide me what to do to enable the previous UI of Firebug again?
Firebug is officially discontinued. You were automatically switched to the Firefox DevTools, because with the Firefox update multi-process Firefox was enabled for you.
You can get Firebug to work again temporarily (until multi-process Firefox is mandatory) by changing a preference. See my answer to a related question how to do that.
I've also explained the alternatives to the Firefox DevTools.
If you want to give them a try, you should read the migration guide for Firebug users.
There is a blog post on Mozilla Hacks explaining the details.

mozilla firefox addon-SDK button vanishes from navigation toolbar after a browser restart

I am creating an add-on for mozilla firefox using Add-on SDK. I have gone through https://developer.mozilla.org/en-US/Add-ons/SDK regarding basics. However, I am now facing an issue with buttons. I want a button to be attached to the navigation toolbar. When I run the main.js file with "cfx run" the button shows up where it should until that firefox window is closed. If I create a .xpi file and open it in firefox it shows the button until we restart the browser. The bottom line is that add-on button vanishes after browser restart. Please, help me regarding this. Thanks in advance. The code is same as given in the mozilla developer tutorials.
Are there any errors? Can you show us some code so we can get a better idea of what you're doing?
To debug this sorts of initialization problems try this:
start the browser
open the browser console, then hit 'clear' to remove existing log entries so you can easily see which ones are caused by the add-on
install the add-on - any errors?
open the add-on manager, disable the add-on, then enable it - any errors?
restart the browser with the add-on installed, then open the browser console. any errors?
Can you reproduce this issue with a simple example add-on, for example this one?

Firebug 1.11.2 is not working on Mozilla Firefox 18.0.2

Right clicking "inspect element with firebug" used to show me the HTML content but suddenly it stopped. I removed it and installed Firebug 1.11.2 on Mozilla Firefox 18.0.2. Still "inspect element with firebug" shows nothing. I have user agent switcher and view cookies installed as well.
Also, i cant do much without firebug in Firefox because in chrome the "Firebug Lite for Google Chrome™ 1.4.0.11967" does not give the option of edit HTML content. Hence it is not much useful. If only i can check HTML in Firefox.
I know that the problem is very specific, still anything would do...
Try to update Firefox to version 19

Firefox issue : Script Panel was inactive during page load

I downloaded latest firefox 14.0.1 & started getting "Script Panel was inactive during page load" and google to see resolution most of the site explains private browser feature.. after some research I found to disable private browsing itself from tools menu (link given below)
http://support.mozilla.org/en-US/questions/921609
but still the I see "script panel is inactive" message. is there any resolution to this of I have to live with it... I even tried using other version for firebug but I still see the issue
Go to the firebug options (triangle next to the bug) and enable "On for all web pages". I am sure this is not what you really want, but it does address the question.

How to know the real size of a web page?

I wan't to know the real size of a web page (HTML + CSS + Javascript + Images + etc.) but from the browser side, maybe with a software, Firefox Add-On or similar?
Use firefox, and get FireBug.
Then get the YSlow addon for firefox.
For IE, you can get the DebugBar which comes pretty close to giving the same information.
YSlow is a FireBug plugin (Firebug is a FireFox plugin), and it works great.
If you meant the entire website, you could get HTTrack (Software) and download the entire site... just be careful.. people don't like it when you do that!
I think the Firefox Plugin Extended Statusbar can do that for you.
It will give detailed information about what has been downloaded, including the size of the downloaded data.
If you can't or don't want to use firefox and its plugins, you can use Pingdom Tools.
Firefox now embedded developper tools (in the tools menu, or Ctrl+Shift+S) has a "Network" tab which allows for detailed monitoring of size and load time of a webpage. The context menu (right click) allows to save data in HTTP archive format (HAR).

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