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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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How does Firefox send link to external application?

I want Firefox to call a bash script to open a certain type of URL. I've created a directory MyScript.app and put an executable bash script MyScript into it. When clicking a link, Firefox asks to ...
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1 answer
54 views

iOS 15.4.1 iPhone 13 with FireFox: Cannot decode data [closed]

I’m trying to track a package shipped to me via USPS. At usps.com I can’t receive tracking info. The tracking url always returns an odd error page: . Therefore, I just attempted browsing usps.com. ...
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52 views

How can I have Firefox notifications bring me to the instance of Firefox that generated the notification?

I'm running multiple instances of Firefox using different profiles and on different workspaces/spaces/desktops. I am signed into (a different) Slack workspace on each instance of Firefox. I would ...
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  • 51
0 votes
2 answers
127 views

I got error of "You can't use this version of the application with this version of OS X" but I installed all OS X updates available

I got error of "you can't use this version of the application with this version of osx" but I installed all updates available I tried to get firefox on there but it said "you can't ...
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  • 386
4 votes
1 answer
93 views

Firefox: Is there a way to add a "look up" option to right-click 'context' menu?

I use my laptop with an external keyboard, mouse and monitor when I am at home. In order to look up a word when in Firefox I have to select it and then lean forward and do a 3-finger tap on the ...
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  • 513
2 votes
0 answers
25 views

Switching between different Firefoxes

Similar and related to #54788 here, but different. I use separate Firefox profiles for personal use and work, and I often have both open at the same time, in different Mission Control "spaces&...
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1 vote
1 answer
72 views

Monterey's password manager in Firefox/other apps

How do I use the new Monterey password manager when I want to log in to a website in Firefox? I don't want to go to the System Preferences to look up the password, I want that it automatically pops up ...
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0 answers
22 views

Google Street View looking jagged and Google Maps font size appear wrong on Firefox on MacOS Monterey

Just updated to Firefox Developer Edition 97.07b7 64-bit on MacOS Monterey 12.1 on a 2020 MacBook Pro 13-inch with 2 Ghz Processor and 16 GB memory. Everything works well, apart from Google Maps and ...
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17 views

Gmail can no longer search and those TLS handshakes make it freeze

Firefox 95.0.2, OS 12.1 Since Big Sur gmail has been acting weird. For one thing, it never stops loading. The hourglass never goes away. Also the empty boxes next to each email now no longer appear,...
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0 votes
1 answer
105 views

Firefox shows wrong Emojis for some reason

Firefox shows the wrong emojis, but only on the page. In the source code, the correct emojis are shown (see screenshot). This problem only affects Firefox, no other browser or app is affected. So it ...
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206 views

Mac proxy settings don't work but do work in Firefox

I have a proxy running on my phone and I am trying to connect to that proxy. When I set the proxy settings in Firefox directly (Settings > Network Settings > Manual Proxy Configuration) it works ...
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2 votes
1 answer
949 views

After updating to Monterey, Firefox fonts are broken

I've just updated my mac to Monterey and after that I found out that font is just different that it used to be before the update - the tab title is quite small and fonts on websites are both different ...
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1 vote
0 answers
48 views

Get firefox on iOS, in desktop mode, to open links as if on a desktop? (and not open in another iOS app)

I'm using firefox on iOS in 'request Desktop Site' mode. I'd like to open a link, just like I'm on a desktop. Here's, it's a google sheet, and it keeps trying to launch the google sheets app. That, ...
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1 vote
0 answers
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Is it possible to set localStorage in Firefox/Chrome/Safari from the command line?

Trying to automate some tasks I do multiple times every day, such as opening my browser and setting localStorage to the values I need. So far I'm able to open the browser on a site from the command ...
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  • 11
0 votes
1 answer
93 views

Firefox icon remains in the Dock after quitting

Firefox icon remains in the Dock after I quit the application (CMD-Q and File > Quit alike). I have unchecked "Show recent apps in Dock" in System Preferences > Dock & Menu Bar. Is ...
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1 answer
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Mail.app doesn't use my default browser for authenticating accounts

If I log into Gmail from Mail.app, it wants to authenticate from a browser, so Mail.app obliges. However, my default browser is Firefox (currently 92.0), but Mail opens Safari. How can I change that? ...
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  • 226
1 vote
1 answer
55 views

How to open HTTP(S) links which are part of a webpage in Firefox or Chrome in the macOS default browser?

Say my default browser on macOS is Safari and I am viewing a webpage in Firefox or Chrome. When I click on a HTTP(S) link on the webpage it opens again in the same application (Firefox or Chrome), not ...
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1 vote
1 answer
485 views

Apple mail can't open links in Firefox because Classic environment is no longer supported

I use Firefox as my default browser on macOS Catalina version 10.15.7. Yesterday I used brew to upgrade Firefox to the latest version: brew update brew upgrade firefox After the upgrade, Firefox ...
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0 votes
0 answers
35 views

Cannot Download Files on Firefox - Big Sur 11.4

Almost the exact same problem as this post: Mountain Lion Broke Firefox - Cannot Download Files. Issue is that files cannot be downloaded, getting an error saying to save to a different location. ...
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-1 votes
1 answer
43 views

Cannot use any browser and message app while date is changed

Does somebody know how to fix internet connection problems when the date on my Mac is not the actual date? I'm changing the date on my Mac to use a trial version of Parallels desktop because I need to ...
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2 votes
1 answer
301 views

Firefox does not accept ⌃⌘Space keyboard shortcut for Emoji & Symbols

I really love the option of ⌃⌘Space to bring up Emoji & Symbols in macOS. Unfortunately this does not work in Firefox. How can I get this to work? I am on macOS Big Sur 11.3.1, and Firefox is the ...
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0 answers
40 views

Firefox and Google Chrome Break macOS Text Selection Keyboard Shortcuts — Suggest a Workaround?

Apple's list of keyboard shortcuts includes a set of text selection options. For example, Shift-Left Arrow and Shift-Right Arrow allow one to add one character at a time from the left or right of the ...
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2 votes
0 answers
60 views

Grant missing application permission to microphone and camera in macOS

I have installed Firefox (version 90.0.2) on macOS version 11.5.1. In the Camera and Microphone panes under the Privacy tab in Security & Privacy settings, Firefox is missing. I tried this answer ...
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  • 161
4 votes
3 answers
1k views

How to get Firefox ad blocking performance from Safari?

Am I comparing apples to oranges? A view of the same site - one in Safari and one in Firefox. Firefox settings on Strict and Safari is Content Blockers enabled. Arent these 2 setting suppose to do ...
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  • 577
1 vote
0 answers
144 views

Search browsing history in Firefox on iOS

Is there a way to search one’s browsing history in Firefox on iOS? I can scroll the history, but I don’t see a search feature. Ultimately, I’d like to search for content and selectively delete it. ...
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0 votes
0 answers
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Build Chromium or Firefox with X11/Xorg and without Cocoa

I like to use X11 on my Mac. I know that you can run X11 Apps through Docker, but that just isn't as efficient. Is there any way to compile Firefox or Chromium with X11 support on a Mac?
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0 votes
1 answer
18 views

Why are some Firefox windows not cycling through the entire list of windows I have open?

I've got a bunch of open windows in Firefox and somehow two of them (this one included which is the most recent one I've opened) are isolated into their own group. The other 8 or so windows will cycle ...
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  • 21
2 votes
1 answer
377 views

How to save session in Firefox?

I am used to Ubuntu and I am new to Mac. I'm using Macbook Pro 16" 2019 with BigSur 11.2.3. What is the way to keep Firefox remember my opened tabs? I just quit Firefox with red dot on the left, ...
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  • 255
1 vote
0 answers
281 views

How To Enable "Touch Bar typing suggestions" on Firefox Browser?

How do you have the Touch Bar show word and emoji suggestions when typing? Expected When typing text while using Firefox browser, the Touch Bar is expected to provide suggestions, i.e. words and ...
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1 vote
0 answers
20 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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  • 139
0 votes
1 answer
34 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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1 vote
0 answers
51 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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0 votes
1 answer
863 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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2 votes
1 answer
3k 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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  • 227
0 votes
2 answers
134 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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  • 103
1 vote
1 answer
277 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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2 votes
1 answer
70 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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3 votes
1 answer
445 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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  • 143
3 votes
3 answers
1k 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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0 votes
0 answers
47 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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1 vote
1 answer
378 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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2 votes
0 answers
407 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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  • 874
2 votes
1 answer
430 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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  • 304
1 vote
2 answers
614 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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  • 874
1 vote
2 answers
459 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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  • 127
0 votes
1 answer
307 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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0 votes
0 answers
23 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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1 vote
0 answers
779 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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1 vote
1 answer
252 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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  • 124
1 vote
0 answers
72 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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