Questions tagged [firefox]

Mozilla Firefox is a free web browser, created by a global non-profit dedicated to putting individuals in control & shaping the future of the web for the public good.

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11 views

Change colour of thin 1 pixel grey border around browser window

I'm using Firefox on Mac OS Catalina. It has a thin 1px grey border around the browser window. I would like to change the colour of this border to black so it blends in better and is less noticeable. ...
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8 views

Transferring Thunderbird Data from Ubuntu to MacOS?

On ubuntu all the thunderbird files are stored under ~/.thunderbird/. If I want to backup / copy the files to another Ubuntu laptop I can just copy that folder to the new laptop. Is it the same for ...
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14 views

Unable to launch Firefox using Selenium

I installed Python 3.8 on MacOS Mojave (10.14.6) using pyenv. I then installed selenium. There was an issue missing the geckodriver. I then installed the geckodriver. After that I ran the program. ...
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12 views

How can I fix my system lagging due to problems with Firefox plugin-container process (IOGraphicsAccelerator, too many contexts)

I was running a google meet call in Firefox and had a few other tabs open, including a gitlab one with an embedded video (which might have been part of the cause of this) when I noticed considerable ...
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26 views

Does screen sharing via Firefox allow another website to control your Mac, or just your browser?

Recently I was requested to share my screen to take an online exam. The security implications of this concerned me. Firefox says: https://support.mozilla.org/en-US/kb/screenshare-safety This to me ...
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1answer
26 views

Opening pdfs on firefox in a new tab

Using Firefox 86.0 on Big Sur 11.2 and I am trying to find out how to immediately open pdfs in a new tab on firefox when I am given the option to download them. This option was available as the first ...
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1answer
376 views

Why is adding adding sites to /etc/hosts not blocking them on BigSur?

On macOS Big Sur I added the settings below to my /etc/hosts my ISP has IPV6 support so normally browsing to major sites that support IPV6 should probably happen on IPV6. 127.0.0.1 cnn.com ::1 cnn.com ...
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2answers
39 views

Choose from list apple script service execution from Safari opens Firefox to display the dialog with list

Im trying to use following Apple Script to display a choose from list and perform certain actions based on the choice of selection: on run {input, parameters} set selT to "42" set ...
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1answer
45 views

Some websites do not load in all my browsers

Some websites do not open in safari, firefox and google chrome. I have been trying for a few days now and it is always the same. In safari, I get "Safari can't open the page "xxx" ...
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1answer
35 views

OCSP Errors - Firefox - macOS

Certain websites are failing when I have "security.OCSP.require: true" set in Firefox. Normal websites work, but when visiting commonly used websites (Facebook, GitHub, Spotify) it fails 90% ...
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1answer
58 views

Keyboard shortcut to move tabs around in Firefox on a Mac

The equivalent of it in Windows would be Ctrl + Shift + PgUp / PgDn. To reiterate, I am trying to move a tab's position forward and back within the windows via keyboard shortcut using Firefox v82 on ...
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2answers
176 views

Change web search engine for Spotlight

Search the web from Spotlight (⌘ CommandSpace) by entering search text and pressing ⌘ CommandB. The expected result of opening the default web browser (Firefox) and completing the web search occurs. ...
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34 views

Site doesn't work on Safari but loads fine on Chrome/Firefox

I'm trying to load www.zhongwen.com on Safari on the iPad on iOS 14 (but I encounter the same issue on Safari for Mac). The site loads fine, but clicking on any Chinese character doesn't load the ...
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41 views

Get URL of opened Firefox tabs from terminal

I am trying to get the url of all opened Firefox tabs from terminal using the solution given here which describes how to do so for chrome. I tried the following: osascript -e 'tell application "...
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17 views

how to get verifications codes from imessage to show in firefox

So when im using Safari and im logging into a website that sends out 2 step verification codes by imessage, when the imessage arrives i get the option when in the browser page to select the code as it ...
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17 views

how to recover an HTML file from cache?

Using Firefox on MacOS. I want to recover an HTML file I might still have on the browser somewhere, because I deleted it by mistake on the server. Is there a way to do that? I know the exact url, and ...
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25 views

Firefox a way to export multiple opened tabs from IOS

where is Firefox storing list of all opened tabs on IOS in normal / private mode? Why i am asking is that I have so may tabs opened after using iPad... now I need / want to export all of these to my ...
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251 views

How to get my passwords out of keychain access (and Firefox) from my CCC backup without a Mac?

My MacBook Pro (running 10.11.6) has a swollen battery, so I shut it down promptly and am sending it in for service. I have an up-to-date backup (a bootable backup) made with CarbonCopyCloner. The ...
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1answer
130 views

Is it possible to enable a Firefox addon using a terminal command on the mac?

Is it possible to enable and possibly even configure a Firefox addon using terminal? Every now and then I need to temporarily disable an addon. I often then forget to re-enable it but it is really ...
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1answer
178 views

Firefox keeps opening on wrong screen

I use a 4K monitor as my main monitor, with my laptop off to one side. Nearly every app I open opens correctly on the 4K monitor. But Firefox always opens on the laptop monitor, even when its windows ...
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30 views

Remapping keyboard shortcuts Firefox

I want to remap focusing the address bar to cmd+D vs cmd+L Reference: Remapping keyboard shortcuts in Chrome and Firefox? I've tried everything on that page and it doesn't seem to be working.
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2answers
79 views

How to make Firefox/Chrome quit when I close it?

There is a weird issue with Firefox/Chrome browser where if I close it using the red close button, it loses all the opened tabs. If I right click on it in the Dock and "Quit", it remembers ...
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1answer
200 views

PR_END_OF_FILE_ERROR on 2 of my 3 WordPress sites but only from my MacBook Pro

I get the PR_END_OF_FILE_ERROR error on two of my three WordPress sites when using current versions of Firefox and Safari on my late 2013 MacBook Pro, macOS 10.15.6. All three sites are hosted on the ...
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22 views

Dropdowns and Firefox on Macbook Pro

I'm using a MacBook Pro with Catalina 10.5.5 and when using Firefox, it has problems with dropdowns. Firefox runs well, no issues there; but the main problem is any site with dropdowns on it, e.g. ...
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405 views

Why can't Safari connect to “server.local”, when Firefox and Chrome can? Is mDNS the reason?

I have a new file server freenas.local. I can connect to it fine with Firefox and Chrome web browsers, but not with Safari browser. The server is announcing correctly on mDNS, as measured by Firefox ...
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1answer
102 views

How do I run apple script on a particular instance of Firefox?

I have three instances of Firefox called - Firefox Firefox 2 Firefox 3 They all live in the Applications folder and the difference is that they have different Firefox profiles and cookies. I'd like ...
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45 views

2017 MBP has started to degrade in performance - dreaded kernel_task

All - My normally stable mbp 2017 has started slowing down with kernel_thread dominating the CPU in recent weeks. This condition persists across reboots. My primary concern is that the machine is ...
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54 views

Downloads from browsers are broken, downloads using wget or curl are not

I restored my mac after getting it back from Apple. It had a busted logic board. After getting it back any download from any browser (Chrome, Firefox, Safari, etc) is flagged by macOS as damaged and ...
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165 views

Sync bookmarks between Safari and Firefox on same MacOS?

Is it possible to have same set of merged bookmarks in Safari and Firefox on same local MacOS?
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1answer
39 views

How to install Firefox on my Mac laptop [duplicate]

I want to install Firefox browser on my Mac laptop. I go to the Firefox website from Google and click on download. It downloaded a Firefox 77.0.1.dmg file. How do I install Firefox using this file? ...
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1answer
242 views

Firefox vs Chrome: how to open new tabs in foreground or background with same meta keys?

The Request How can I make the same meta keys between Firefox and Chrome do the same thing? In my macOS, currently in my environment (<click> = "mouse left click on weblink"), the following "...
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19 views

Open Firefox Developer Tools on certain display

When I hit the inspect button on a website, Firefox (developer edition, on display 1) opens the developer tools on display 3 (I have three monitors). Is there a way to tell Firefox (or Mac) to open ...
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324 views

CPU usage of coreaudiod on macOS with Apache Guacamole on FireFox

A single tab in Firefox opened with Apache Guacamole increases the use of cpu by 4-5% by the coreaudiod demon. If, for instance, I open 5 tabs, the CPU usage of coreaudiod is about 20%. When closing ...
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1k views

Firefox won't access my webcam in Google Meet; will access it for other sites

I have two webcams: One built into my laptop, and an external one attached over USB. When I go to meet.google.com, Firefox only allows me to access the internal webcam. When I go to other sites, ...
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69 views

How to “unstick” Firefox from a space?

Whenever I try to open Firefox, it shows up rapidly on the current space but then disappears to move to the space where it has been closed the last time I used it. For example : I have 3 spaces. I am ...
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1answer
229 views

firefox mac os: how to remap cmd+r to f5?

I'm used to hit the f5 key for reloading page on linux/windows. Is there a way to remap reload page shortcut cmd+r to f5 on mac os?
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2answers
1k views

Preview on Catalina fails to select or copy text in PDF

After entering the Title for this question, I see numerous links to (perhaps) similar questions regarding Preview's failure to select or copy text from a PDF document. And so this question may do ...
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0answers
127 views

How can I start firefox with a different profile on a Mac?

I have a MacBook Air (Mojave, 10.14.6) and for Testing reasons I need to be able to have several instances of firefox running with different profiles each. At the same time. How can I achieve this?
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3answers
2k views

Why can Firefox not allow permanent access to my screen?

When I join a Google Hangout and try to share my entire screen, Firefox always prompts me whether to share a window or the entire screen. I always want to share the entire screen. But when I enable ...
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1answer
1k views

How to add a confirmation prompt window to warn before closing a window for any application?

This is about adding a Warn-Before-Closing Confirmation Dialog Window to all application windows in macOS before closing a window. How do I add a Confirmation Dialog Window when I click the Red X ...
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1answer
288 views

Script or App to auto write URL of browser-downloaded files to their respective Comments field (metadata) in the files Get Info sheet?

I'm looking for a script or any other way to automatically write the URL of a download file to its "Comments" field, as shown in a files Get Info sheet (Command+I in Finder). Anyone know if I could ...
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63 views

What's causing inadvertent “leave page” commands when typing in browser window?

An annoying thing mostly, but occasionally results in data loss. It happens when I am typing - as I am now - in a browser window in Firefox on my MacBook Pro (2016, Mojave 10.14.6). When I'm typing ...
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2answers
2k views

Set Firefox as default browser to open links in Gmail

I’m not seeing a way to choose a different default browser in the Gmail App's "Settings" dialog and I want to use Firefox: How can I circumvent Google's restriction on opening links in Gmail using ...
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1answer
229 views

Unable to start firefox profile manager on MacOS

I am trying to start the profile manager for Firefox running the following command in a terminal: /Applications/Firefox.app/Contents/MacOS/firefox-bin --ProfileManager But this opens just Firefox. ...
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1answer
194 views

How do I use the right click look up feature everywhere on my Mac including Firefox?

I want to be able to double click on a word in my Firefox Browser and right click it and select look up to translate it. (or even better, double click and it shows the English dictionary explanation) ...
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1answer
954 views

How to run multiple instances of Firefox?

My Firefox ESR installation has just updated itself to Firefox 68.2.0esr, from the previous version, and now I no longer seem to be able to run multiple instances of Firefox (using different profiles) ...
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1answer
71 views

How can I set Firefox to respect my custom Mac keyboard shortcuts?

In System Preferences, I have ⌘D set to Enter Full Screen and Exit Full Screen. I have been using these shortcuts for close to a decade now, and I'm really not interested in relearning them. ...
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1answer
69 views

Is Firefox Private Network available in iOS

From webpage https://private-network.firefox.com/, I know that Firefox Private Network is available in Firefox windows client, is Firefox Private Network funation available in the Firefox App of iOS?
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1answer
571 views

Switch tab in Firefox with swipe left/swipe right gestures

I have a MacBook and I'm using Firefox. Using the editor on the about:config page, I wish to modify the options of browser.gesture.swipe.left (or right) such that it will switch to the tab to the left ...
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1answer
286 views

How to export Safari history to either Firefox or Chrome?

The title pretty much explains. I've tried searching and couldn't find any reliable info. Almost all posts in the internet are asked many years ago.

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