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Unable to show File Picker

This was going to be a question about Firefox being unable to display the file picker dialog, but I managed to find a solution that worked for me along the way. Since it … (read more)

This was going to be a question about Firefox being unable to display the file picker dialog, but I managed to find a solution that worked for me along the way. Since it was nowhere near the top of Google's results, I thought I'll share my solution in the hopes that this would help someone facing this same issue.

The hardware:

  • Asus UM425IA Zenbook (AMD Ryzen 7 4700U CPU)

Worked in:

  • Ubuntu 20.04 LTS
  • Firefox provided by APT repository
  • Xorg display server

Not working in:

  • Ubuntu 22.04 LTS
  • Firefox 99.0.1 provided by snap
  • Wayland display server
  • File picker worked briefly on fresh install, but something (not sure what) quickly breaks file picker functionality

The symptoms:

  • Firefox stopped being able to open file picker dialogs
  • Right clicking an image and selecting "Save Image As..." does nothing
  • With forms that accept file upload (such as on this post question page "Add images (optional):"), clicking "Browse" does nothing
  • File downloads work correctly when set to "Save files to ..." under Settings, but nothing happens when set to "Always ask you where to save files"
  • No response to "Ctrl + O" open file shortcut

Similar questions and solutions:

Things I tried that did not work:

  • Disabling hardware acceleration
  • Starting with add-ons disabled
  • Troubleshoot mode
  • Clearing startup cache
  • Clearing cookies and site data
  • Clearing history
  • Refreshing Firefox
  • Creating and using a new profile
  • Deleting the `xulstore.json` file from the profile directory
  • Toggling all permissions under Ubuntu Settings > Applications > Firefox to off and then back to on
  • chmod 777 ~/Downloads
  • Disabling native file picker "ui.allow_platform_file_picker = false"

And finally, what fixed it for me was to go into "about:config" and change "widget.use-xdg-desktop-portal.file-picker" from "2" to "0". Credit to this post that clued me in.

I really hope this saves someone else 2 days of hair pulling and I would appreciate advice from someone more knowledgeable than me on:

  • Why this fixed the problem
  • Whether I should be opening a bug report either against Firefox, or Ubuntu
  • Whether I should also be changing "widget.use-xdg-desktop-portal.mime-handler" and "widget.use-xdg-desktop-portal.settings", both are currently set to "2"

Asked by James Fu 1 year ago

Answered by Kiki 1 year ago

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Disable "What's new with Firefox" page

Ever since the "What's new with Firefox" page contained an ad for a movie, I want to disable it as I find it objectionable that a decision to include advertising on that … (read more)

Ever since the "What's new with Firefox" page contained an ad for a movie, I want to disable it as I find it objectionable that a decision to include advertising on that page was made. How does one disable this page from being displayed after Firefox is updated and restarted?

Asked by brian234 1 year ago

Answered by brian234 1 year ago

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When fullscreen, only showing bookmarks bar in new tab

Hello. Since I use the bookmark bar and fullscreen mode a lot, I would like to be able to see the bookmark bar in fullscreen, not on every tab, but only in a new (empty) … (read more)

Hello. Since I use the bookmark bar and fullscreen mode a lot, I would like to be able to see the bookmark bar in fullscreen, not on every tab, but only in a new (empty) tab, so that I can avoid disabling fullscreen to access the bookmark bar and at the same time not having any part of the interface visible unless I'm in a new tab. Thanks in advance for any reply!

Asked by Matteo 1 year ago

Answered by cor-el 1 year ago

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Amazon.com

When I load Amazon.com, the webpage is a lot of text and random pictures. Amazon's layout is broken. I loaded the same page in Chrome and Safari without a problem. I rein… (read more)

When I load Amazon.com, the webpage is a lot of text and random pictures. Amazon's layout is broken. I loaded the same page in Chrome and Safari without a problem. I reinstalled Firefox 99.0.1 without any improvement. Please fix.

Asked by stolenfire1 1 year ago

Answered by cor-el 1 year ago

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How to recover passwords from logins.json-1.corrupt?

I opened Firefox as usually, but passwords are missing, only logins are available. There is also a file called logins.json-1.corrupt in the profile folder. Renaming it … (read more)

I opened Firefox as usually, but passwords are missing, only logins are available. There is also a file called logins.json-1.corrupt in the profile folder.

Renaming it back to logins.json with restarting the computer does not work.

There are no previous versions of these two files available in the system.

Please let me know how I can recover passwords, may be with a special software.

Thank you!

Asked by DVS75 1 year ago

Answered by DVS75 1 year ago

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Clicking on a "mailto" link opens a new tab then automatically closes immediately

When I click on a "mailto" link, Firefox (my default browser) opens a new tab, then immediately close that tab without waiting for my to interact with it. No draft email… (read more)

When I click on a "mailto" link, Firefox (my default browser) opens a new tab, then immediately close that tab without waiting for my to interact with it. No draft email is created. I see that other users have reported this behavior in the past, and I've tried the suggested remedies without success. Specifically, I ran Malwarebytes, and it found no threats. I then started Firefox (on the Mac) via the Option key (to start it without ad-ons), and that does not change the behavior. I'm on ver 99.0.1 of FF, which is up to date as of 4/20/2022 (today). My Mac OS is also up to date (ver 12.3.1). My Mac is a 2021 MacBookPro with the Apple M1 Pro chip. I use gmail. OTHER BROWSER (like Safari and Chrome) can open "mailto" links in a new tab in FF (which is my default browser, and used for mailto links) just fine! Here is an example of the URL that I see in a new FF tab opened via Chome: https://mail.google.com/mail/u/0/?fs=1&tf=cm&source=mailto&su=Cover+of+the+River+Journal&to=Steve+Mones%3Cstevenmones@optonline.net%3E Any help would be appreciated. - Thanks, Jim

Asked by mrjimchristensen 1 year ago

Answered by mrjimchristensen 1 year ago

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Can't scan QR code for sync

I have tried this several times over a few years, and have never got it to work I know it must be something I am doing wrong because if it was a glitch or bug, it would h… (read more)

I have tried this several times over a few years, and have never got it to work I know it must be something I am doing wrong because if it was a glitch or bug, it would have been fixed by now. Usually I need to do this if I need to reinstall the OS, (Windows and Linux), or a new pc, the usual, but this time I had a major crash, so I'm starting over.

Anyway I have signed in on my pc to my FF account, and went through the menu to turn on sync, and I get to the page where is says, "when ready click next to display the QR code". I get my android out, open FF, sign in, click the "Scan" button, the FF scanner opens,, I open the QR code on the pc, (I have also went to the website to get a QR code). Then either way I scan the code, and get an errror msg "Must scan from inside FF". I am scanning from inside FF, with the FF QR scanner.

I don't uinderstand how of the 20 or more times I have tried to do this, I can't get it to work. I don't understand how I screw up every times, over a few years. But I also know as I said, if it was a bug MOzilla would have fixed it by now. Usually I give up on that and just log into both the pc and the phone, close both browsers and reopen them and it will go ahead and sync.

But not this time, I am unable to get it to sync for anything. I've been working on this for 3 days now, and at this point I'm confused, I don't remember what I have and have not done. Let me add, and I don't know if this will make a difference, I don't think so, but what do I know? Originally this all started, when I had to reset my password. I tried for 4 days there to get a recovery code to work. (The following is just to describe what I've done, and is not a second question) I had one downloaded, and saved on my pc. But no matter what route I took to go through the reset process, exactly as described in the help file, I never could get a place to enter the code. I read every article I could about it, and finally it seemed easier to just reset the password and resync than try to get the code to work.

Which is why I am sitting here, desperatly needing to sync my data, but unable to. If anyone can tell me what I need to do I will appreciate it. If you need any more information, just let me know.

Asked by 1971robby 1 year ago

Answered by cor-el 1 year ago

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YouTube Video GPU Decoding only works in Troubleshooting Mode

I recently upgraded graphics cards from an Nvidia GTX 1080 to an AMD 6900XT. Since then I noticed video stuttering on YouTube while playing 4k videos, especially noticeab… (read more)

I recently upgraded graphics cards from an Nvidia GTX 1080 to an AMD 6900XT. Since then I noticed video stuttering on YouTube while playing 4k videos, especially noticeable at 4k/60FPS (example video ). Prior to the upgrade, I was not experiencing issues.

I monitored task manager as the video was playing to see CPU usage, which was sitting at 25% (4 core 8 thread CPU). GPU usage was fluctuating from 1-3%.

I tried resetting all the changed configuration options in about:config, removing all add-ons, "Refreshing" Firefox, and ultimately uninstalling and reinstalling. Nothing has worked so far except for "Troubleshooting mode" in about:support. In that mode, I experience no stuttering and GPU usage rises to 25-35% with the video playing, even before I reinstalled.

This most likely isn't a networking issue as the "Stats for nerds" option on the YouTube video shows I have 10-20s of buffer while the video is still stuttering.

I would like to find out what's different about Troubleshooting Mode that is not giving me the same problem while in "Normal Mode". Any advice?

Asked by Jacob 1 year ago

Answered by Jacob 1 year ago

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Firefox is not applying userChrome.css

Hello, so I am not very experienced and recently discovered how to customize Fire Fox using the userChrome.css file. I went through all of the steps that are required in … (read more)

Hello, so I am not very experienced and recently discovered how to customize Fire Fox using the userChrome.css file. I went through all of the steps that are required in order to do this. I set up a folder called chrome in the directory /Users/my name/Library/Application Support/Firefox/Profiles/x1oheo82.default-release To test if it works I wrote this into the userChrome.css file: @namespace url("http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul"); /* set default namespace to XUL */

  1. TabsToolbar{ background-color: #FF0000 !important }

and set toolkit.legacyUserProfileCustomizations.stylesheets to true After restarting Fire Fox I saw that nothing changed. I double checked if there was a hidden file extension or if I might be in the wrong directory. I tried different code to see if there was some error in the code but nothing changed. I watched countless tutorials on You Tube and tried to find answers on google but nothing that I did seemed to help. I don't know if it has something to do with the operating system I am running or if it is a limitation of my computer hardware (I am running Fire Fox on an m1 mac).

Asked by Arihx 1 year ago

Answered by cor-el 1 year ago

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download popup not opening when clicked

Hello! Sometimes when I download something, when I click on the download icon in the toolbar, the download popup doesn't appear. I can fix this by restarting firefox or o… (read more)

Hello! Sometimes when I download something, when I click on the download icon in the toolbar, the download popup doesn't appear. I can fix this by restarting firefox or opening a new window. Why does this happen? I am using Linux Mint Cinnamon 20.3

Asked by -elison- 1 year ago

Answered by cor-el 1 year ago

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Font size became tiny since yesterday

Hi! Since yesterday, in Outlook, my font size became very tiny for subjects and categories. I can barely see it. Can you please restore them to normal sizes?? I am de… (read more)

Hi! Since yesterday, in Outlook, my font size became very tiny for subjects and categories. I can barely see it. Can you please restore them to normal sizes?? I am desperate trying to read them. Thank you! Shirley Savva

Asked by ShirleySavva 1 year ago

Answered by cor-el 1 year ago

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Restoring all firefox data after password reset. will it work?

I need to reset my password and I have all my firefox files from "appdata/roaming//monzilla/firefox" but will I be able to restore all my data from it after the reset or … (read more)

I need to reset my password and I have all my firefox files from "appdata/roaming//monzilla/firefox" but will I be able to restore all my data from it after the reset or will the reset prevent anything? Will it work?

I want to be able to sync my data and know my password for this account.

I am aware that there is a guide for restoring profile data, but I dont know what happens after I reset the password and still try to restore the profile.

Asked by slashslash 1 year ago

Answered by cor-el 1 year ago

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Docusign

I have successfully logged into my Docusign account from the Firefox web browser on my Windows 10 computer up until now. All of a sudden when I try to log in, Docusign t… (read more)

I have successfully logged into my Docusign account from the Firefox web browser on my Windows 10 computer up until now. All of a sudden when I try to log in, Docusign tells me I've entered an invalid password. The password is valid, I've tried it on Microsoft Edge and in the Apple iOS Docusign app and have successfully logged in. They both prompt me to get a code from the Microsoft Authenticator and I do not get that prompt when I attempt to log in thru Firefox web browser.

Asked by Charlie Storke 1 year ago

Answered by FredMcD 1 year ago

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Middle Mouse opens link in 2 tabs / closes 2 tabs constantly

Hi Firefoxes! I updated to the latest and greatest 99.0.1, whenever i use the middle mouse button it opens every link in 2 tabs. Also when i middle mouse on a tab, 2 tabs… (read more)

Hi Firefoxes! I updated to the latest and greatest 99.0.1, whenever i use the middle mouse button it opens every link in 2 tabs. Also when i middle mouse on a tab, 2 tabs are closed. Anyone came along this bug? Restarting FF and Windows did not help. Trying to get my notebook charged and check it on my macbook.

TYVM! Best regards, -John.

Asked by rayben1 1 year ago

Answered by rayben1 1 year ago

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Exceptions to deleting cookies upon exit

Hi, I normally delete all history, including cookies, each time I log out of Firefox 99.0. I have two sites for which I would like to keep cookies. I entered them as e… (read more)

Hi,

I normally delete all history, including cookies, each time I log out of Firefox 99.0. I have two sites for which I would like to keep cookies. I entered them as exceptions, but each time I log out those exceptions are lost.

Is there any way I can those specific cookies?

Thank you.

Asked by crl4242 1 year ago

Answered by cor-el 1 year ago

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Firefox not playing embedded Youtube videos in my phpBB forum

Firefox recently stopped playing embedded youtube videos on my phpBB forum site? i keep the latest firefox and only recently showed up embedded videos play fine on Chrom… (read more)

Firefox recently stopped playing embedded youtube videos on my phpBB forum site?

i keep the latest firefox and only recently showed up embedded videos play fine on Chrome and others

here's a link to my forum which includes an embedded Youtube video demonstrating the issue, does it play on your browser? (ONLY firefox has an issue on my computer, chrome, etc. work fine)

https://www.mchenrysoftware.com/board/viewtopic.php?t=2045

thanks for any tests/insight into what might be causing the issue

brian

ADDITIONAL COMMENT: why don't you include a date on these posting? a lot of wasted time on old posts? and also need a 'Preview' on these before posting?

Asked by Brian 1 year ago

Answered by FredMcD 1 year ago

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Access Denied

I am getting: "Access Denied You don't have permission to access "http://www.foxnews.com/" on this server. Reference #18.4f102017.1649951199.9ba34cde" Worked OK Previous… (read more)

I am getting: "Access Denied You don't have permission to access "http://www.foxnews.com/" on this server. Reference #18.4f102017.1649951199.9ba34cde" Worked OK Previous day. Nothing new on System. Other computers/Tablets OK.

Firefox 99.0.1 64 bit David Northrup

Asked by dnorthrup 1 year ago

Answered by FredMcD 1 year ago

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Monospace font not being chosen correctly when font-family starts with missing fonts

I've just started noticing in Firefox 99 on Arch Linux that Firefox is using the wrong font when the font-family is given as "ui-monospace/other fonts..., monospace". Thi… (read more)

I've just started noticing in Firefox 99 on Arch Linux that Firefox is using the wrong font when the font-family is given as "ui-monospace/other fonts..., monospace". This looks similar to the issue mentioned here: https://support.mozilla.org/en-US/questions/1351497

The inspector for these websites underlines "monospace" as the active font, but then uses a non-monospace font (in my case, Bitstream Vera Sans) to display the content. This does not happen when the font-family is "monospace,monospace" or "monospace". I can't quite figure out exactly what causes the font to be chosen incorrectly: sometimes it does show up if I have the preceding fonts installed, e.g. Consolas or Liberation Mono, but other instances do not look as intended.

Currently, I have fontconfig set up such that: $ fc-match :family=ui-monospace VeraMono.ttf: "Bitstream Vera Sans Mono" "Roman" $ fc-match :family=monospace VeraMono.ttf: "Bitstream Vera Sans Mono" "Roman"

Firefox's fonts in about:preferences are configured as all defaults: Serif: Bitstream Vera Serif Sans: Bitstream Vera Sans Monospace: Bitstream Vera Sans Mono

Asked by Tim Alberdingk Thijm 1 year ago

Answered by Tim Alberdingk Thijm 1 year ago

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Picture-in-picture issues

I'm not sure what happened, but the picture-in-picture extension isn't working anymore and there's a sort of "script" (see uploaded image) that shows up over the top of v… (read more)

I'm not sure what happened, but the picture-in-picture extension isn't working anymore and there's a sort of "script" (see uploaded image) that shows up over the top of videos, including but not limited to the ones on YouTube. I used to be able to still use the extension by using keyboard commands at first (ctrl shift ]), but now that doesn't work either.

Asked by TiffanyK127 1 year ago

Answered by -elison- 1 year ago