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Questions tagged [firefox-addon]

Commonly, you should use this tag IN ADDITION TO the tag for the specific type of add-on which you are asking about. At this point, the most common is firefox-addon-webextensions for WebExtensions based add-ons. A Firefox add-on is a way of adding to or modifying the Firefox web browser. Most commonly, questions in this tag are about Firefox extensions, which add new functionality to the browser, although "add-on" may also refer to themes or plugins.

A Firefox add-on is a way of adding to or modifying the Firefox web browser. Most commonly, questions in this tag are about Firefox extensions, which add new functionality to the browser, although "add-on" may also refer to themes or browser plug-ins.

7386 questions
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What is The difference between Firefox extension and plugin?

In Firefox there are plugins and extensions. Could you please explain to me why these addons have different name and tabs ? Does they differ so much so they need different names? I think it's a little unnatural to differ these things, extensions…
Tom Smykowski
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Convert Google Chrome Extension to Firefox or Safari extension

Is it possible to convert a Google Chrome extension to a Firefox or Safari browser extension?
user1365732
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How to specify the Keyword for search engines in Firefox?

It keeps bothering me that I cannot manage the Keyword for "One-click search engines". The keyword could be displayed as follows in Firefox 38.0.1 Through the help link, I found ways to add/hide/remove search engines. However, it did not give any…
llinfeng
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Altering HTTP Responses in Firefox Extension

How can I alter the HTTP response body in a Firefox extension? I have setup an http-on-examine-response observer and an nsIStreamListener object with the code below. After I get the data, parse it, and alter it, how do I push the altered response…
Nadeem Douba
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Is there a way to port a chrome extension to other browsers?

Is there a way to port a chrome extension to other browsers, without having to entirely re-write the code? My chrome extension uses the browser_action command to open "popup.html" in the extension window... Update: I found adblockforchrome port.js…
David
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How to add java plugin for Firefox on Linux?

I want to add java plugin for FireFox (v10.0.12) on Linux(Centos 5.6 64bit). I have JDK 1.7.0_12 installed, and add a symbolic link to plugin folder under /usr/lib/mozilla to the file libnpjp2.so under (JRE)/lib/amd64/ Followd this…
Frank
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Logging to console from Firefox extension?

I understand that I can log to the console when using a Firefox extension with the cfx run command. Is there a way to log to a console after the extension has been packaged with cfx xpi? Logging to Firebug is fine if possible. I have found two blog…
David Tuite
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Firefox add-ons: how to install my own local add-on (extension) permanently in Firefox?

I have my own browser extension with some personal website customizations. Works fine in Chrome, but doesn't work in Firefox. Unlike Chrome, it seems Firefox can't install unpacked extensions or add-ons. Only in debug mode I can do Load Temporary…
RocketNuts
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Disable cache on specific domains?

Is there a good way to disable cache for specific domains? For example, anytime I start building a new website can I block just that domain from caching? I would prefer the rest of the internet to be cache-able. I am currently using Firefox Web…
Dave
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What is the difference between a Firefox extension and a Firefox add-on?

The terms "extension" and "add-on" seem interchangeable, but I have seen instances where people seem to mean different things with "extension" vs "add-on." Clarity please?
Crashalot
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Geolocation provider for Firefox that allows manual input

Are there any easy ways to override the default behaviors of the geolocation api and just hard code your current location? I think this would be useful for testing and for privacy reasons (providing fake location data) I thought there was an add on…
Ryu
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What programming language is required to create a Firefox plugin?

What are the minimum programming requirements to create a Firefox plugin?
michael
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Firefox Addon SDK: Ways to display options to user?

I'm quite new to addon development with firefox. I picked the addon sdk for porting my chrome extension to firefox. What would you suggest to display a options page / options panel / options window to a user? Loading a options.html file from my…
patchrail
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How to access add-on content script in Firefox console?

I have developed an add-on for Firefox and Chrome. It has content scripts. I want to access them in the browser tab's console (on Firefox the Web Console). For example, I want to enter a global variable defined in the content script(s) in the…
zhm
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Override default jQuery selector context

I'm trying to use jQuery inside a Firefox extension, and actually want to use jQuery to manipulate the DOM of the current page, as opposed to the context of the XUL file. Thus, I load jQuery in my XUL file, and pass it to some of my scripts in a…
pmc255
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