Questions related to extensions or plugins that enable, disable or extend the functionality of Mozilla Firefox

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212
votes
13answers
48k views

How can I simulate a slow connection, or limit the bandwidth that Firefox can use?

Is there a way I can simulate various connection speeds from within Firefox? I need to be able to check http://localhost with varying speeds. I know there are standalone applications that can do ...
9
votes
9answers
4k views

How to save a bookmark in Firefox with POST data?

I would like to save as a Firefox bookmark a page which is not accessible using GET. The only way to retrieve the page is to send some POST data. For example, I would like to bookmark a Chronopost ...
15
votes
2answers
893 views

How do I prevent pages I visit from overriding selected Firefox shortcut keys?

In Firefox, how can I prevent pages from overriding Firefox built-in keyboard shortcuts through Javascript on a per-key basis? Preferably on a per-site basis, too? The most frustrating override is the ...
4
votes
4answers
1k views

Have an add-on for Firefox like NoScript, but for cookies (that make possible to whitelist while surfing the web)?

I have NoScript installed on Firefox, that blocks every script on pages. I have to manually allow any scripts that are run on my browser. I would like to have a similar add-on like NoScript, but for ...
36
votes
7answers
63k views

What is the “Google Update” Firefox add-on?

Browsing through Firefox's Add-ons list, I've discovered that there is one named Google Update, which I don't remember installing. How did it get on Firefox's list of installed Add-ons, or plugins, ...
10
votes
1answer
2k views

Is there a way to search the text of my browsing history in Firefox?

I often find myself in the situation where I know I saw something in a web page recently, but don't remember where. I would therefore like to be able to do a full-text search of the contents of my ...
4
votes
3answers
481 views

How can I duplicate a Firefox tab including the history with a keyboard shortcut?

Problem I want to do as much as possible with keyboard shortcuts in Firefox. One operation I still can't do with a keyboard shortcut is duplicating a tab while keeping the history. What I have ...
2
votes
2answers
3k views

View menu bar & bookmarks toolbar in Firefox 4 full-screen mode?

In Firefox 3.6, I was using the Autohide extension to enable the menu bar and bookmarks toolbar in full screen mode. But Autohide is not compatible with Firefox 4, and even its home page appears to ...
4
votes
2answers
390 views

Turn off Mozilla Firefox warning that there are new Firefox add-ons

Time to time Firefox pops up and says there are updates for your browser (especially add-ons). How can I change this so that it doesn't pop up this question any more, and only updates the add-ons ...
2
votes
3answers
103 views

Upon opening new tabs through links in Firefox, does the selected tab automatically switch to the new tab or does it stay on the same tab?

That is, say I am on www.google.com I select a link to say yahoo.com be opened in a new tab. Does the selected tab automatically shifts to yahoo.com or does it remain on google.com? This is in ...
2
votes
3answers
1k views

Browser where I can add my own custom CSS or Javascript

Is there a way to load my own custom CSS or Javascript while using a browser? When I'm accessing a website or developing a website I want to load my own custom scripts from my computer. I know this ...
11
votes
5answers
7k views

Disable/enable the proxy on a tab by tab basis in Firefox

Is it possible to disable/enable the proxy connection on a tab-by-tab basis in Firefox? I can access the internet with the proxy enabled, and I can access our internal servers with the proxy ...
5
votes
3answers
315 views

Firefox plugin for English learners

Could you please help find a plug-in for Firefox that supports the following functions: Showing translation of a word by a simple shortcut (like Shift + Right click). Allowing to modify list ...
6
votes
2answers
3k views

How can I spell check web pages from the browser?

How can I spell check web pages when browsing them? I've added the After the Deadline Chrome extension, but it only seems to work on forms and not whole web pages. I'm happy to use Firefox if that ...
5
votes
5answers
5k views

Hide all images on a page in Firefox (plain text only)

Can I hide all images displayed on a page in Firefox? I want to view the page in plain text only (with no images). Is there any Firefox add-on for this?
3
votes
2answers
2k views

How to turn off Firefox forms autocomplete for only certain websites, or for all sites temporarily?

I want to turn off Firefox autocomplete, but only for specific websites--not for the entire interwebs. My language course has an online workbook, and the autocomplete keeps giving me the answers if I ...
3
votes
1answer
127 views

How do I prevent a web page from directly embedding data from other external sites?

I browse with Firefox and 50% of the time, I am behind a proxy. The proxy firewall blocks certain sites including Facebook, Pinterest, and Twitter. I am unable to obtain a complete list of blocked ...
3
votes
1answer
4k views

How do I copy the contents of a dropdown list to paste into a text document?

I'm looking for a tool that surely must exist somewhere... There's a dropdown list on a webpage with numerous values in it. I simply want to copy these values into the Windows clipboard and paste ...
3
votes
3answers
1k views

How to download Firefox extensions from addons.mozilla.org without installing them?

Pages at the https://addons.mozilla.org/en-US/firefox site often feature buttons that say "Add to Firefox". Clicking on such a button causes a Firefox extension to be downloaded and installed. I am ...
2
votes
1answer
853 views

Caching YouTube videos across loads

Is there a way to force the browser to cache loaded YouTube videos across page loads? In other words, if you refresh some video page in which the video already started loading (or is fully loaded), ...
2
votes
5answers
1k views

Firefox right-click: easy support for the Firefox or the site's menu?

Many websites have started replacing the right-click context menu with one of their own. Firefox lets me choose whether a website can disable Firefox's menu, but not much else. Neither value of the ...
2
votes
6answers
5k views

Is there a way to make Firefox 4 less ugly?

The only reasons I'm not using the Firefox 4 beta are purely aesthetic -- the bright orange menu button is awful and there's the fact that toolbars (such as the Bookmarks toolbar and StumbleUpon) are ...
2
votes
1answer
530 views

Always open specific domains in a different browser from Firefox

I would like to force specific domains (say facebook or twitter) to always open in Chrome instead of Firefox which is my default browser. There is an extension called "Open With" which can be used to ...
1
vote
1answer
98 views

Is there a print-friendly/mobile page redirector for Firefox?

When clicking through search results, you often end up on a print-friendly page or a mobile page rather than the full page you were after. Using an add-on like Redirector, one can write rules to ...
1
vote
1answer
1k views

How to write an SQL query for SQLite Manager for Firefox places.sqlite?

I am using SQLite Manager which is an extension for Firefox. I use this to inspect the places.sqlite database. I am trying to find the earliest visit date for a specific URL in the Firefox history. ...
1
vote
2answers
3k views

Need software to save videos from 4tube.com - to watch the videos smoothly

Isn't there a programs that will capture screen writes at the hardware level? I have tried several Firefox add-ons, and several stand-alone programs, and none of them will save videos from this site. ...
1
vote
1answer
740 views

Firefox Add-on Will Not Uninstall Completely

Symptom An Add-on is still listed in Add-On Manager-Extensions, after it has been uninstalled and Firefox restarted. No matter how many times Firefox is restarted, the listing is still visible, ...
0
votes
1answer
330 views

Firefox add-on RestClient says Chrome://restclient/content/ how?

I have been using RestClient on OSX's firefox browser. All of sudden I have noticed the address-bar of the Firefox. Please see the indication in the image. I want to know the reason for this & ...