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browser-addons interview questions

Top browser-addons frequently asked interview questions

Is there a HTML5 Validator plugin for Firefox?

Is there a plugin for firefox to validate HTML 5? I've always used this but if my webpage has a <!DOCTYPE HTML> doctype it complains about it not having a doctype at all.

I specifically would like one similar to the one I linked, where the verification happens on your computer and instantaneous and automatic, without needing to send any data to a 3rd party server and then wait for a reply.


Source: (StackOverflow)

How to simulate slow internet connection

I currently deploy with GAE (google app engine) and I try to implement some AJAX validation. So I got a couple text-fields and "spinners" (ajax loaders) which should be displayed when an AJAX request is sent. But I deploy on my local computer (localhost), so the GAE SDK reacts very fast on any request. It takes about 50-70 ms(miliseconds) to perform the whole ajax request, which is far far away from the real.

Is there a way to somehow simulate slow Internet connection? I just want to see how my "spinners" work. I want to test some ajax setting (jquery) about timeouts, errors and so on...

Any ideas ?


Source: (StackOverflow)

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How to Determine which Firefox Add-ons are Using the Most Memory

I love Firefox for its add-ons. I have a lot of them installed, which obviously increases memory use. But it seems that some add-ons are better than others in that department. Does anyone know a way to figure out approximately how much memory each add-on is using? Obviously, I could disable them all and try them one at a time, but I'm hoping for an easier way...


Source: (StackOverflow)

Is there a browser add-on to filter Google search results?

Is there a way to block specific sites from appearing in Google search? I'm looking for a browser add-on (preferably Google Chrome) - I don't want to create custom search engines or what-not.


This question was a Super User Question of the Week.
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Source: (StackOverflow)

Firefox addon to imitate Google Chrome's built-in notification system

I'm using Mozilla Firefox 4 and I would like to be able to receive notifications similar to Google Chrome's built-in notification system, like so:

enter image description here

Is there an addon like this or similar?


Source: (StackOverflow)

Is there an HTTPS Everywhere add on for Chrome, MSIE or safari?

I really like this HTTPS Everywhere add-on for Firefox. But I tend to browser hop, so have similar HTTPS-preferring add-ons been released for the other major browsers?


Source: (StackOverflow)

Disable ALL cookie warnings and hints

What might be an effective way to universally block or auto-accept common cookie warning banners before the web browser shows them to the user?

Eg. does a userscript (Greasefire/Tampermonkey) exist to find and thwart most cookie-warning implementations, perhaps via a regex search? Or at least can this be accomplished with an extension? (Trying not to bloat the browser with yet another extension, though.)

This applies to many outdated UK and EU websites, especially now that the "Cookie Law" is behind us.


Source: (StackOverflow)

Why does my browser connect to unknown third party sites when I visit different webpages?

When I visit a site, It connects as it should, however I notice it also connects to unknown third party sites automatically. In the Mozilla Firefox Browser, an add-on called Lightbeam shows the third party sites which I was connected to without my intention. I visited 15 sites, and it automatically connects me to nearly 50 other third party sites.

What is the reason behind this?

Can anybody explain?


Source: (StackOverflow)

"Task Manager" addon for Firefox?

Are there any addons for Firefox that can replicate the performance monitoring of Task Manager in Windows - seeing memory and CPU used - but for all the tabs in the current Firefox session?

I want to be able to see which tabs are taking up the most memory or hitting the CPU the hardest.


Source: (StackOverflow)

Refresh all tabs in Google Chrome

I am using Google Chrome 11.0.696.77 on Windows 7 Ultimate x64.

Is it possible to refresh(reload) all the tabs in Google Chrome without going into each individual tab and hitting F5 to refresh the page?


Source: (StackOverflow)

Do disabled Firefox extensions make Firefox slower?

Do disabled Firefox extensions make Firefox slower?

I know that extensions make browsing slower, but what about extensions that are disabled and not in use?


Source: (StackOverflow)

Can a site detect if I use AdBlock in Firefox?

I recently visited (an official) website in search for an episode of a TV-show. The site popped an information dialog stating that I had to disable AdBlock to see the content. Is this at all possible or is it just an educated guess? Does Firefox advertise what addons I have installed? If so: how and why does it work that way?


Source: (StackOverflow)

Is there a NoScript alternative for Google Chrome?

I love using Google Chrome, but I don't like visiting sites that have embedded ads/pages that could have malicious JavaScript. Is there something like the Firefox extension, NoScript, for Google Chrome?


Source: (StackOverflow)

Recursive download (`wget -r`) equivalent for Firefox?

I have a website, and I want to download all of the pages/links within that website. I want to do a wget -r on this URL. None of the links go "outside" of this specific directory, so I'm not worried about downloading the entire internet.

As it turns out, the pages I want are behind the password-protected section of the website. While I could use wget to manually do that cookie negotiation, it would be a lot easier for me to just "log in" from the browser and use some firefox plugin to recursively download everything.

Is there an extension or something that will let me do this? Many extensions focus on getting media/pictures from the page (heh. heh.) but I'm interested in all of the content - HTML and everything.

Suggestions?

Thanks!

Edit

DownThemAll seems like a cool suggestion. Can it do a recursive download? As in, download all of the links on the page, and then download all of the links contained within each of those pages, etc? So that I basically mirror the entire directory tree by following links? Kinda like the -r option of wget?


Source: (StackOverflow)

Add-on for blocking sites in Google Search [closed]

I want to block Yahoo Answers from Google searches. As there is no option from Google for that, are there any extensions for Chrome or add-ons for Firefox that can block sub-domain results from Google search?


Source: (StackOverflow)