Firefox Support Forum

I often run into issues with PDFs in Firefox Linux. They either appear totally blank (typically after suspend/restore), or they appear with the desktop background showing through (as in the attached screenshot).

Hard refreshing the page doesn't change anything, opening a new tab and opening the PDF again doesn't change anything, opening a new window and loading the PDF doesn't change anything.

The screenshot is with this PDF: https://www.sgsw.ch/home/strom/_jcr_content/Par/sgsw_accordion_list_1838160259/AccordionListPar/sgsw_accordion_12353/AccordionPar/sgsw_downloadlist/DownloadListPar/sgsw_download_1049323524.ocFile/2023-08-31%20Mitteilung%20Elcom%20Erh%C3%B6hung%20Elektrizit%C3%A4tspreise%20f%C3%BCr%20das%20Jahr%202024.pdf

It renders correctly in Chromium.

Firefox 126.0 using the recommended performance settings on Mint 21.3, nvidia quadro p620 using the official nvidia drivers v535.171.04-0ubuntu0.22.04.1

Whenever I m visiting to my website I m facing an issue like getting a horizontal black line near the scroll bar, it is coming up when I make my browser window responsive to the resolution of 1920 X 1080 and when the zoom level is decreased to 90%, 80% & 67%.

This issue I m not facing in other browsers like chrome, edge.

Below is the screen shot attached,

I Cannot make Firefox my default Browser,(Windows 10) If I go into Apps & it Shows (IN BLACK) that Firefox is my default Browser & then go into Firefox,it shows that Firefox is NOT MY DEFAULT Browser I Have Totally Deleted Firefox & Clean the Registry of Firefox before install a new Version I Also have a Laptop (windows 10) & it works perfectly So On my Desktop,I Went into Users/Local & Delete Firefox & also went into Local Low & also Raming & deleted all firefox & then I went into my Laptop & Copied all Firefox Data from each of Local,Local Low & Roaming & Pasted thenm into each of the Local,Local low & Roaming BUT IT STILL WILL NOT Allow me to Have Firefault as Default I have Microsoft Personal come into my Computer & he COULD NOT make it my Default either I need somebody which is very KNOWABLE to REply PLEASE ASSIST Thank You Darryl

When I see a highlight reference to browser settings: Java Script enabled; otherwise Firefox wont operate properly. How to know Java Script is not enabled (vice-versa). I'm not sure that I have seen a switch Or toggle to know JS is On/Off

I was scrolling trying to make cards for Father's Day and there was a pornographic image where there should have been a fairytale castle coloring page. How do I make sure this does not happen again?

Hi,

more Details concerning the problem you can see here ! It should be great if you could help us with some diagnostics, for example why the problem only appears with FF on Linux, not with FF on WIN.

STR:

1. Launch Linux FF
2. Visit this page "Potential issue with plugin PITM" (Preview here
3. Because you will need an Account for visiting account please follow "Konto eröffnen" (Create Account) instructions).
4. After my approval for the account please visit again "Potential issue with plugin PITM"
5. Click "1.png" Below heading "Attachments", that should work without problems.
6. Close image view
7. Move Mouse pointer to image below heading "My test with a screenshot" – should become magnifier
8. Now Click that image

  » Expected (and so it does with WIN): Big image opens in new TAB
  » Actual:  New TAB opens, but without image view.

What are your results? FF Linux Problem or something else?

Few days ago I started to have issues with Zoom Meeting recordings playback. When I open the video it clocks but doesn't start playing. I never had this issue before. Zoom support cannot replicate this issue. They say everything works for them.

I cleared cache and history, restarted my computer but that didn't do anything for me - video still clocks. Playback works fine on Chrome. Somehow playback on Firefox stopped working for me. I am using the latest version.

Please help

Firefox.exe -silent and Firefox.exe -silent -p default work, but Firefox.exe -silent -p MyProfile Not

Do it is possible to preload Firefox with a custom profile with extensions, without stay visible, to speed firefox istance open?

-os-autostart What exactly does it do?

For some reason I notice that some of our image files, viewed after opening an online pdf document with images within, shows random white horizontal lines. This is not shown using edge or chrome. you can go here to view https://mcclone.net/wp-content/uploads/2024/05/Connects-Issue-12.pdf.

Any help would be appreciated.

Thanks Chris

Running Win 11 Pro with the Firefox - 64 bit - All updated per June 9th.

ISSUE: Website tells me I have an 'add blocker' or the product 'addblocker' installed. I don't. However I get blocked even viewing my own website: fleksjobbernetvaerket.dk .... and others as well.... It's full of Google ads.

SOLUTION: I searched for how to solve this, but none of it is working, not even re-setting or re-installing Firefox, emptying cache, files and folders. I kinda gave up on this.

Hope you can help.

thanks Knud

I am a long-time Firefox for Mac user and recently, browser APP all of a sudden is ignoring selected PRINT preferences. Two examples are: Printing one-sided when two-sided is selected, and printing in color when the default and selected preference is for a "Black and White Fast Draft". I use a MacMini M1 running Sonoma v14.5 and Firefox v 127.0 (64 bit). My printer is an HP OfficeJet Pro 8710 with up-to-date firmware. I have resorted to use of Chrome until I resolve this situation, though I prefer to use Firefox. In addition, while it may be a separate issue, I also found that the use of Firefox when using GMAIL developed a new issue at approximately the same time. Now, when clicking on the selection box for an individual email, Firefox often does not allow the box to be checked, but again with Chrome, it works just fine. Any help would be appreciated. Thank you.

This morning I saw that images were not downloading within my GMAIL messages. Believing that something was wrong with my connection, I decided to give both my computers a restart. This concerns my Windows 10 64-Bit, on which I had both Edge and Firefox opened, both with multi-tabs. In Firefox I had my Google account open with other tabs. After shutting down both computers I left my apartment. The Windows 10 restarted on its own; but both browsers lost their tabs even though I set each to reopen the previous session. With Edge and function keys I was able to restore my previous session; but not with Firefox. about:sessionrestore was not available. The Profile folder did not show a backup for these lost tabs. I hate hunting for them in History because I am working on multiple projects and don't have time for this wasteful activity, which is why I set Startup to Open Previous Windows And Tabs. What option did I miss?

Now, we have more wasted time. I reopened as many tabs as I remembered opened during the session I could not restore. Now, the only tabs that reopened since are the ones I opened that have posts about restoring sessions. The tabs I reopened are lost even though I checked off Open Previous Windows And Tabs. This browser is performing worse as of today for some reason I am not aware. What changed? From what I see here, there was no MS Windows update that might have occurred when I shut down and lost the tabs. Could I have disrupted the tabs by using the right hand, top corner "X" to shut out of Firefox?

This is getting more and more whacked up! It seems that every time I reopen a tab within the Library, it opens it in the same tab, overlaying the previous tab I opened.