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  • Solved

How to set PDF viewer in firefox to dark mode again (after it stopped working)

I view a lot of pdf documents via firefox, the light gray background makes my eyes and head hurt after prolonged usage. In the past I found a solution on this forum that… (read more)

I view a lot of pdf documents via firefox, the light gray background makes my eyes and head hurt after prolonged usage. In the past I found a solution on this forum that advised to set pdfjs.viewerCssTheme to "2" in about:config. This set the background of pdf viewer to black/dark gray. This has worked for years until recently when the pdf viewer switched to light mode again (pic 1). I checked the about:config settings for pdfjs.viewerCssTheme but there appears to be no change. I tried restarting the browser, setting the theme to 0 and to 2 again, updating browser. Sadly the theme is still light gray. Is there a way to change it again? The desired outcome is in pic 2. I do NOT want to change the color of the pdf pages themselves.

Asked by K 4 months ago

Answered by zeroknight 4 months ago

  • Solved
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How to disable protection, or enable dark mode, for Firefox pages

I've always liked the Firefox New Tab page, with Pocket, and until today, DarkReader plugin has always worked. But now it says that it can't because the page is protecte… (read more)

I've always liked the Firefox New Tab page, with Pocket, and until today, DarkReader plugin has always worked. But now it says that it can't because the page is protected.

I tried the solution to use bookmarklets, suggested in https://support.mozilla.org/en-US/questions/1350781, but it didn't have any effect (https://sanketmehta7.github.io/DarkMode-JS-BookMark/

If I can't find a solution, I'll just ditch Pocket, and use Google as my first page, or something. Or maybe ditch Firefox, which doesn't seem to think that dark mode is important. I don't like being blinded by the light.

Asked by Jeff Learman 3 months ago

Answered by cor-el 3 months ago

  • Solved

Suddenly cant delete emails in outlook.live.com

Starting this morning I suddenly cant delete or mark emails as read in Outlook.live.com. Even if I open an email, and it appears as read after that, if I refresh or leave… (read more)

Starting this morning I suddenly cant delete or mark emails as read in Outlook.live.com. Even if I open an email, and it appears as read after that, if I refresh or leave the page and come back, its marked as read again.

I tried dropping all add-ons (a kill switch to drop all add-ons and re-activate them is still a feature I feel Firefox needs, I have to click every single one of them every time) to no avail.

I was in the process of writing this question on the Microsoft forums (which is usually like whizzing in the wind) when I thought to try a different browser. I had zero issues and Outlook.live.com worked perfectly normal on Microsoft Edge.

This HAS to be a bug in a recent update in Firefox

Asked by Adrenoreceptor 3 months ago

Answered by Adrenoreceptor 2 months ago

  • Solved

Installing custom Firefox extension

I'm at a loss for words here. I have a website I frequent and it has a really annoying behavior. I'm a developer so finally I mustered the strength to do something about … (read more)

I'm at a loss for words here. I have a website I frequent and it has a really annoying behavior. I'm a developer so finally I mustered the strength to do something about it. I googled how to create an extension in Firefox and within 5 minutes I had a working extension that solved their annoyance. However, I can only load it temporarily. If I close Firefox, it goes away. When I try to actually install it, it says I need to have it signed. I have now spent the better part of an hour trying to find out how to self sign it. I refuse to believe that I have to submit this to Mozilla for me to be able to install my own code. Can someone please send me in the direction of how i self sign and install my own extension. I have no intention of publishing, I only want to run this for myself.

Asked by viktor37 1 month ago

Answered by cor-el 1 month ago

  • Solved

CAN NOT find the file path location of Firefox.exe application.

Hello, James here. I CAN NOT find the Firefox application file location. There is no option to show file path upon right click of the desktop icon and I can not locate i… (read more)

Hello,

James here. I CAN NOT find the Firefox application file location. There is no option to show file path upon right click of the desktop icon and I can not locate it in File Explorer. I have done an entire (C:) drive search and turned up nothing. C:\Users\(username)\AppData\Local\Mozilla Firefox does not exist in my file system. I am at a loss here and it's driving me bonkers!

Asked by jbab52 2 months ago

Answered by Paul 2 months ago

  • Solved

Firefox doesn't remember windows 11 taskbar settings.

Hi, I just upgraded to W11 yesterday and having a weird issue with firefox. I have "combined task bar buttons and hide labels" set to NEVER yet firefox has a weird issue … (read more)

Hi, I just upgraded to W11 yesterday and having a weird issue with firefox. I have "combined task bar buttons and hide labels" set to NEVER yet firefox has a weird issue that no other open program has. I have firefox pinned to my taskbar (image 1.) When I click it (image 2) it's supposed to expand into a full size tab but it stays as just an icon.

But when I right click and open taskbar settings, firefox remembers that I have combine task bar set to off and correctly expands into a full tab (image 3.) I'm not sure if this is a firefox issue or a general windows issue. Thanks for any info anyone can provide.

Asked by ahavell 3 months ago

Answered by zeroknight 3 months ago

  • Solved

No audio device in Windows 11

I've been having this reoccurring firefox bug every couple of months where randomly all audio from the application stops working is no longer available in the volume mixe… (read more)

I've been having this reoccurring firefox bug every couple of months where randomly all audio from the application stops working is no longer available in the volume mixer of windows 11 (see example screenshot with twitch tab in background playing)

In the past, I was able to fix this issue by simply restarting the audisrv service and everything would work normally but now nothing I do seems to work. I've tried:

- Resetting - Uninstall/reinstall - Disabled all extensions - New profile

I do not have this issue on firefox dev or firefox nightly. If anyone has any ideas on how I could resolve or better diagnose this issue it would be much appreciated! TIA

Asked by Gio 3 months ago

Answered by Gio 2 months ago

  • Solved

"Manage bookmarks" always opens at "other bookmarks" (which is empty).

Hi, Folks. When I open "manage bookmarks" (Library), why does it always open at "other bookmarks"? This is at the very bottom of the alphabetical list (and empty) so I al… (read more)

Hi, Folks. When I open "manage bookmarks" (Library), why does it always open at "other bookmarks"? This is at the very bottom of the alphabetical list (and empty) so I always have to scroll back up to the top. I've got a lot of bookmarks, so this is extremely irritating. How do I change this? I've searched for an answer. The only likely solutions suggest removing the "other bookmarks" folder, but the description of how to do that doesn't work. Nowhere can I find a "remove other bookmarks" option. And the delete option is greyed out.

I don't necessarily need to hide or remove it, as long as I can get the bookmarks manager/Library to open at the top, ie. "Bookmarks Menu".

Cheers, Ian

Asked by IanStar 2 months ago

Answered by IanStar 2 months ago

  • Solved

PopUp Video Window displaying with Block PopUp windows enabled

When I go to website nypost.com, and select a random article that has a video display at the top of that page, a pop up of a smaller video window appears in the lower rig… (read more)

When I go to website nypost.com, and select a random article that has a video display at the top of that page, a pop up of a smaller video window appears in the lower right corner of the screen.

For example,

Go to nypost.com Select an article with a video such as https://nypost.com/2024/01/30/metro/phony-uber-driver-charged-with-ripping-off-nyc-bar-patrons-in-cellphone-scheme/

There is a pop window of a smaller video screen that shows in the lower right corner

Autoplay is disabled

Is there a specific setting to stop this functionality of the pop up video window to appear? Is the block pop up window functionality in the same category of this description supplied above?

Thank you.

Asked by LionUser2024 2 months ago

Answered by zeroknight 2 months ago

  • Solved

Does Firefox have a built-in feature for listing the contents of each container tab in Firefox one at a time?

Firefox doesn't seem to have a built-in feature for listing the contents of each container tab in Firefox one at a time. That is, I would like to have only the contents o… (read more)

Firefox doesn't seem to have a built-in feature for listing the contents of each container tab in Firefox one at a time. That is, I would like to have only the contents of one tab container shown on my browser at a time, and be able to switch from one container to another freely. What is the use of containers if all their contents are displayed at once on the tabs of my browser?

Asked by avi_sion 3 months ago

Answered by avi_sion 2 months ago

  • Solved

Continuous 'Mozilla Crash Reports' from Firefox

I have a home-built media center (OS: Linux Mint 20.3) utilizing Firefox as the primary browser. This system has run almost flawlessly for many years. Updated to 20.3 i… (read more)

I have a home-built media center (OS: Linux Mint 20.3) utilizing Firefox as the primary browser. This system has run almost flawlessly for many years. Updated to 20.3 in early 2022. Rather suddenly (yesterday) Firefox began repeatedly crashing, displaying 'Mozilla Crash Reports' (example attached). Firefox appears to initiate as expected. However, on display (e.g., Youtube, Facebook, web page, etc.) request, Firefox immediately throws a 'Mozilla Crash Report'. I do not recall any changes to the system that might have generated this condition, and have spend most of today unsuccessfully troubleshooting.

MB: Gigabyte F2A85XM-D3H CPU: AMD A-10 5800K APU with Radeon HD Graphics OS: Kernel: 5.4.0.170 generic x86_64bits; on 128MB SSD Firefox for Linux Mint mint-001 - 1.0 (122.0 (64 bit)) RAM: 7 GB

I have attempted to follow some of the moz://a Support pages (i.e., "Troubleshoot extensions, themes and hardware acceleration issues to solve common Firefox problems"). I have noted that while in 'Troubleshooting mode', Firefox appears to behave as expected, seeming to implicate extensions, themes and/or hardware acceleration. However, under normal Firefox operation enabling/disabling these does not seem to resolve the issue.

    * Hardware acceleration (on or off) still results in display of 'Mozilla Crash Report',
    * Default theme is selected, and
    * I don't appear to have any unaccounted extensions or other addons enabled.

Any thoughts and/or additional guidance would be greatly appreciated.

Asked by Grizz952 2 months ago

Answered by Grizz952 2 months ago

  • Solved

Explore add-ons ad on new tab page

When I launch FF after rebooting an annoying ad pops up on the new page tab, the contents are: 'Get the inside scoop See the add-ons our staff use to make browsing fast… (read more)

When I launch FF after rebooting an annoying ad pops up on the new page tab, the contents are:

'Get the inside scoop

See the add-ons our staff use to make browsing faster, safer, or just plain fun!'

It pops up just under the puzzle piece icon next to the address bar.

Is there a way to block it?

Asked by tmtvl 3 months ago

Answered by zeroknight 3 months ago

  • Solved

certain website I use now goes blank after loading

for years I use cbs6wrgb in albany for news, as of recently when I go to this site it loads the page and then goes blank. No error message I can access this site on other… (read more)

for years I use cbs6wrgb in albany for news, as of recently when I go to this site it loads the page and then goes blank. No error message I can access this site on other browsers

Asked by Peter Nightingale 2 months ago

Answered by zeroknight 2 months ago

  • Solved

Firefox displays white area below the footer bar on certain webpages, whereas other browsers do not

I set up a website for my wife a while ago. Most recently we noticed that some (not all) of our pages are not shown correctly when we use Firefox as browser. Specificall… (read more)

I set up a website for my wife a while ago. Most recently we noticed that some (not all) of our pages are not shown correctly when we use Firefox as browser. Specifically, when you open a webpage and scroll down as far as you can, there is a certain white area at the very bottom visible, below the footer. Now, if you wait a small amount of time, then scroll a little up and down again, the white border is not longer there and the page appears as it should.

Example pages for this behavior are: https://praxis-weinhold-schattentherapie.eu/entspannung/ https://praxis-weinhold-schattentherapie.eu/praxis/ https://praxis-weinhold-schattentherapie.eu/ueber-mich/

It is not happening e.g. with: https://praxis-weinhold-schattentherapie.eu/unterkuenfte-und-impressionen/ https://praxis-weinhold-schattentherapie.eu/angebote-und-kontakt/ Example screenshots are attached.

This strange behavior cannot be recognized with other browsers, we tried Chrome as well as Edge. Many thanks in advance for any ideas on how to adress this! Best regards Carsten

Asked by Carsten Weinhold 2 months ago

Answered by Carsten Weinhold 2 months ago

  • Solved

Add URL in the Firefox 'Add bookmark' window

Is it still possible to configure userChrome.css to have the URL field in the Firefox 'Add bookmark' window? Also, is userChrome.css configuration going to be used no mor… (read more)

Is it still possible to configure userChrome.css to have the URL field in the Firefox 'Add bookmark' window? Also, is userChrome.css configuration going to be used no more in future releases? If yes, then how will we be able to customize, for example, fonts in Library, side bar and context menu?

Asked by doru001 2 months ago

Answered by doru001 2 months ago

  • Solved

Combining History data files

Is it possible to combine history/bookmark files? Firefox has truncated my "History" to 15 days and the only option I see to get elder entries is to combine a backupped h… (read more)

Is it possible to combine history/bookmark files? Firefox has truncated my "History" to 15 days and the only option I see to get elder entries is to combine a backupped history file with the current one. An easy-to-use tool for this task would be welcome. I did not change my config options after the update to 121.0.1 (64-Bit) (Windows 10pro) but I think I had the total history (from years) before the update. My current Options related to this topic are: browser.history_expire_days false places.history.expiration.max_pages false places.history.expiration.transient_current_max_pages 501234 privacy.clearOnShutdown.history false privacy.history.custom true history (*) Boolean Number String

I already sreened Help files of this Forum concerning lost history data but they all do not give sufficient answers or I do not understand them (as a German user). Thanks. Martin

Asked by m_vanselow 3 months ago

Answered by m_vanselow 2 months ago