Questions tagged [firefox-extensions]

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

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38 views

Why Does Mozilla Recommend Redundant Firefox Security Extensions?

Among its many listed extensions, Mozilla says it has extensively tested and can recommend ~100. This is confusing: many seem to duplicate existing Firefox functionality. Many sources (e.g., How-To ...
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18 views

Firefox, open link in new tab with history

In Firefox, I heavily use »Open Link in New Tab« (or rather Middle-Click or Ctrl+Left-Click). The tabs opened that way start out with an empty history, but I'd like them to retain the history of the ...
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2answers
66 views

Enable all Firefox extensions in private mode by default

I am trying to enable all extensions in private mode in Firefox without having to go into each addon. Is there a universal switch (or extension) of sorts that does this in one go? I tried this but it ...
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22 views

How to automatically unify and download the segmented videos of a website?

When I play the videos in a website, video downloading plugins in Firefox show that the playing video is broken into segments. Is there anyway to automatically unify the video segments and download ...
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1answer
62 views

Where should extensions be placed to be included in a custom build of firefox?

I am trying to create a custom installer for firefox which will include an extension that I created myself, however, I am unable to find the correct place to put the zipped extension file in the ...
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33 views

The privacy-focused Decentraleyes extension for Chrome and Firefox is supposed to emulate CDNs, but what are they really?

After reading the wiki for the privacy-focused Decentraleyes extension available for both the Chrome and Firefox browsers, I am still confused on what the extension does. According to said wiki, ...
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1answer
280 views

How to have seperators between tabs in new Firefox?

The new Firefox update (June 2021) is nice and minimalistic - however, I really dislike how difficult it is to make out where one tab starts and ends as there is no divider between the tabs: I can't ...
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16 views

Firefox: how to make an extension restart from time to time (automatically)?

I use a Firefox extension which shows me the list of unread emails and allows to manage these quickly (mark as read, delete, etc). This is a proprietary extension, and it is abandoned. The problem is ...
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1answer
15 views

Company Websites Share Credentials - How do I sync credentials between websites in Firefox?

I think it's pretty common for companies to operate several internal websites, which use the same (LDAP?) credentials. I believe it's also fairly common for that password to need to be changed every 2-...
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1answer
28 views

Firefox: How to Create Shortcut or Button to "Manage Data" (cookies/storage manager)

I would like to have a button to take me here: Tools -> Options -> Privacy & Security -> (scroll down) -> Manage Data. (Load the cookie manager.) I do this continuously, and all the ...
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31 views

Tree style tab add on for Firefox missing vertical scroll bar

I've installed Tree Style Tabs 3.7.4 on Firefox 84.0.2. After opening tabs that fill the side bar, there's no vertical scroll bar. There's also no setting to hide/show it. Did anyone encounter this ...
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1answer
27 views

Display warning on specific domain with firefox

Using Firefox 87, I would like have some kind of warning when I am on a specific website or domain. Like a parental control, except that instead of blocking the content, it just gives me a visual ...
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1answer
47 views

Firefox disable extension on local files

Is it possible to disable selected firefox extensions from acting upon local files starting with file:// as this might be security issue? Any suggestions? Google Chrome has this feature, unfortunately ...
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1answer
85 views

How I export my profile data from a firefox extension?

How I export my profile data from an extension? An extension I'm using isn't working properly and I'd like to export my data before reinstalling it. It's called onetab. The menu on the top right ...
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1answer
14 views

Hiding navigation bar outside full-screen mode

I would like to have a non-fullscreen window of Mozilla Firefolx with a hidden navigation- and tool-bar. Is there a way to do this? Or alternatively, are there browsers that can do this?
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1answer
122 views

Firefox: How to "bookmark" page contents (for long articles to be able to easily navigate through where one has ended reading for example) [closed]

This is difficult to search for because the term "bookmark" is widely used as a bookmark for the whole page. The functionality that I'm looking for is, like, a "traditional bookmark&...
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16 views

How to make extension open links in a different browser instance (different profile)?

I'm making an extension for using in firefox -no-remote browsers (i.e. a browser instance independent from the main one) and I want some links opened in the main firefox window, so i'd probably need ...
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1answer
165 views

Need to force unsigned firefox extensions to be installed (2021)

As of 3 days ago (March, 2021), with Firefox v78.8.0esr (64-bit), I cannot install unverified (unsigned) add-ons [extensions] anymore. And existing extensions that they have deemed as dangerous I ...
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0answers
19 views

How to search inside installed add-ons in Firefox

On the about:addons page in Firefox there seems be no way of searching inside your own already installed add-ons. When I press ctrl+f it goes to the search box which obviously doesn't do that. Is ...
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60 views

Change default language for specific website in Firefox

Sorry if there is already a solution to my problem but I've searched for hours without success. I live in France and I purposely set my system language to English to have everything in English but for ...
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160 views

Firefox addons manager: Allow access to file URLs

In Chrome for every extension we can enable and disable a setting called as Allow access to file URLs. This enables or disables the extension on local files. Is it possible to do something similar for ...
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1answer
64 views

How can I confirm from the start that I want to open a website always in a particular multi-account container?

With Firefox' Multi-Account Containers one can set a particular website to open always in a given container, like so: Q: How can I avoid being asked to confirm this choice next time I open said ...
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128 views

Avoid white flash in Mozilla

TLDR; how can i avoid white screen flash on firefox 85.0.1 (64-bit)? I use dark reader to darken my screen, as I get a lot of screen time and bright colors (white) hurt my eyes. When I open a new ...
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12 views

Firefox addons don't work at all

I've installed Autofill addon, it appears in the main taskbar now but when I click on it nothing happens: I don't see any new items in the context menu either. I've installed another similar addon ...
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30 views

uBlock Firefox addon - How to block specific searches for a word

I want to block searches for specific words and/or websites that contain specific words. How can I do this?
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1answer
119 views

How do I get around resistFingerprinting setting my preferred Firefox theme to light?

In Firefox, I want to have both browser.in-content.dark-mode and privacy.resistFingerprinting set to true. However, the latter setting, as discussed in this issue, masks this setting and sets the ...
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1answer
175 views

#No rights to write in Windows %temp% directory# blocks Firefox downloads, (un)installers, pdf prints, other temp tasks

This is a follow-up on Firefox cannot save files (most of the time), how to solve?, just with a more global problem than just Firefox: I cannot install or uninstall as soon as the %temp folder is ...
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1answer
61 views

How to have separate bookmark toolbars for personal/work purposes that can be hidden?

Is there an add-on for this? If not, what is the alternative for this purpose: to separate work and personal bookmarks? I already do something similar with the tab groups extension and I need this for ...
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0answers
31 views

limit an extension to a firefox container?

Is there a way to install a firefox extension within a single container? I'd like to try some of the shopping extensions (Honey, SlickDeals), but they as for "all data on all sites" and ...
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1answer
54 views

Handling conflicting addon keyboard shortcuts in Firefox

I currently have both the To Google Translate and Firefox Multi-Account Containers add-ons installed in Firefox. The Ctrl + . keyboard shortcut for Multi-Account Containers doesn't work for me, but ...
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3answers
1k views

How to track Firefox's Internet Usage for each tab?

My Firefox is hogging up way too much of my bandwidth but I can't seem to figure out what is consuming all that data. I have only 2-3 active tabs, the rest 50 tabs from previous reboot are on sleep. I ...
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169 views

Is there a way to open multiple ed2k links for amule/emule?

For example, if I copy just one ed2k link on firefox address bar ed2k://|file|firemule-0.4.1-fx.[contentdb.emule-project.net].zip|15754|7F35BB7A70E9BF16F81D10AFC6DF5079|h=...
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45 views

How to clear all data stored by firefox extensions?

As some Firefox extensions have access to the data for all websites we visit. One might want to clear the data stored by these extensions for privacy concerns to prevent tracking. So, 1 - Is there a ...
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0answers
30 views

OpenH264 isn't downloading for Firefox for WebRTC

Environment: Windows 10 IoT Enterprise 2019 LTSC - win64 Firefox ESR 78.3.1 The plugin OpenH264 isn't downloading properly, it is needed for Webex teams SDK to work. We have tried all the options ...
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1answer
28 views

How do I restore firefox addon that has been removed from toolabar?

I accidentally clicked on remove from toolbar option for one of my firefox add-on. The add-on is still installed, but not visible on the toolbar. I couldn't find any settings that would allow me to ...
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0answers
60 views

How to save or get binary file array of an image on the page without redownloading it in Firefox 81?

I'm using Firefox 81 (and also 82 dev edition), and I'd like to be able to save the images on the page that has finished loading without sending another GET request. This is because: I don't want to ...
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1answer
30 views

Display tab count in Firefox, without permission to snoop on tabs

Is there a way to display the number of open tabs in Firefox, without giving an extension permission to read your tabs? Chrome has the open-source Tab Counter extension you can easily audit. Firefox ...
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0answers
40 views

How can I better see "Find" results more clearly in FireFox?

I used to use the Findbar Tweak add-on for Firefox before FireFox 57 broke it. I've searched around and there are solutions for highlight all results, search in all tabs, etc. But I haven't found a ...
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0answers
131 views

Where are adblock plus custom filters stored locally with firefox?

Versions: Firefox (linux) 67.0.4 Adblock Plus 3.8 I have custom filters and usually I add them one-by-one, not via a filter list subscription. I can see all of them from Settings > Advanced > My ...
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1answer
740 views

How do I uninstall these Firefox extensions?

Today I tried to use profiler.firefox.com which is some webapp that Mozilla makes to help you profile webpages in Firefox. I have a simple webpage I wanted to profile which just has a small script and ...
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1answer
580 views

Remove a site from its default Firefox container

I have many Firefox containers I use for multiple sites at work. By mistake I added my SSO provider page to a container FOO, which is intended for other usage. Now every time I request from my SSO ...
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1answer
26 views

Web crawling/scraping a list of all files (which are publicly available) instead of going via 5 clocks from home page for each file

Summary of the problem I am trying to create a list (and potentially download) of all files (100s) from the following address: https://eba.europa.eu/regulation-and-policy This is something I would use ...
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1answer
260 views

hide navigation bar in firefox

Title says it all. I'm trying to hide the address and tab bar in firefox such that it only shows up when I press Ctrl+L. Similar to the way it auto hides in full screen mode. I found a whole bunch of ...
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0answers
74 views

Are browser extensions that allow css :visited to start working again a security breach?

All browsers have restricted :visited for better security. (Mozilla's page for details.) This is quite troublesome when visiting a lot of pages. I have been using the extension 'stylus' which targets ...
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1answer
311 views

Save all Firefox tabs to disk as jpeg, html, pdf, png, etc

Looking for a way to save a group of tabs in Firefox as files to disk. The files should be saved as whatever the type of page is that is being displayed, ie, html or pdf or png. (I assume based on the ...
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1answer
24 views

Firefox moves extensions around when enabling/disabling

When I enable or disable Firefox extensions, they change position after about a second (or less, didn't time it). This is a problem when I am trying to figure out what extension broke a site by ...
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0answers
12 views

how can I arrange the extensions by date or enabled and disabled

my chrome or firefox addons are a mess I can't deal with it which are on which are off is there a way to arrange them in chrome and firefox.
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1answer
123 views

How to have multiple proofing languages in Firefox?

In Firefox, I'd like to have multiple, or at least two, proofing languages and keep English as main display language. For instance, and as I'm French, the following screenshot of web WhatsApp shows ...
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1answer
94 views

What user-agent does DownThemAll add on extension convey to servers when executing within 2020 versions of Firefox Browsers? Any easy way to check?

What user-agent does DownThemAll add on extension convey to servers when executing within 2020 versions of Firefox Browsers? Any easy way to check? The last googled info I could find on this was ...
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1answer
210 views

How do I install an add-on from a file in Firefox?

I am running Mozilla Firefox 76.0.1. I would like to install an add-on from a .xpi file. This question was asked 10 years ago here, but the answer has changed. Now, whether I open the add-on from ...

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