Forum d’assistance Firefox

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

So I have an issue where I am unable to reorder or detach tabs after having detached one tab. When I start Firefox I am able to reorder my tabs as much as I want, but once I detach one tab both functionalities do not work anymore.

- Firefox version 126.0 on Kubuntu 24.04 - After restarting Firefox I am able to do it again once - After rebooting I am also able to do it again once - The same issue in private window - I have refreshed Firefox through Help -> More troubleshooting information - Disabled all my add-ons

I cannot seem to find a real answer online. Does somebody here have a solution for me :-)?

Sometimes drag functionality stops working. I can't grab a tab to move it to another position or to a new window. (Holding left click on the tab and moving the cursor does nothing). Also, re-merging the tab with another firefox window stops working. (Dragging a tab to a firefox window from another firefox window doesn't merge them. It does nothing) I can right click on the tab and select Move to move it to a new window but dragging stops working. I have to close Firefox and start it again (sometimes twice), then dragging starts working again. This happens multiple times a day. I am on Linux Mint and the version is 126.0 (64-bit). This problematic behavior has only recently began.

I was in the middle of asking this question when I fixed (worked around) the problem so I'm posting more as a informative post as there is a lot of old misdirection out there now.

I am(was) unable to drag any URLs from the URI drop down field in the main interface to my bookmarks toolbar. Nor was any drag and drop functionality working in the "Customise Firefox" screen (right click space on url bar -> Customise Toolbar).

I have now found that resetting my zoom setting in preferences to 100% restores this functionality. The problem arose when I was using 120% zoom, NOT text only.

when i wanna open a page on youtube, i got some errors like below in my console window:

``` Cross-Origin Request Blocked: The Same Origin Policy disallows reading the remote resource at https://rr3---sn-p5qlsndd.googlevideo.com/videoplayback?expire=1716635853&ei=bXRRZsXhJonb6dsPr4S9gAo&ip=104.237.233.106&id=o-AAWbYs_c1wgN4MrU7OqKDoN_4E89qYQsMLYgu196ZLvi&source=youtube&requiressl=yes&xpc=EgVo2aDSNQ%3D%3D&mh=Wx&mm=31%2C26&mn=sn-a5msenle%2Csn-p5qlsndd&ms=au%2Conr&mv=u&mvi=4&pl=25&spc=UWF9f9R71vLfm1F-HqlKYmIsTmmQ76vISxWKiaa8DnBJ1RFYdP1uqbuRYDqk&svpuc=1&ns=nZ43uaQFzt5gq9VgUw-rDA0Q&sabr=1&rqh=1&mt=1716613539&fvip=3&keepalive=yes&c=WEB&smc=1&n=DtTlBfhfTkjbJA&sparams=expire%2Cei%2Cip%2Cid%2Csource%2Crequiressl%2Cxpc%2Cspc%2Csvpuc%2Cns%2Csabr%2Crqh&sig=AJfQdSswRQIgBpryxlELSlbPjito5Ju6_RfQzqVcw10u03ydIYI41lcCIQCgk-eJSUpHsjpfCC08Zif4lFJZY3GVMbfofGXPQsdZcw%3D%3D&lsparams=mh%2Cmm%2Cmn%2Cms%2Cmv%2Cmvi%2Cpl&lsig=AHWaYeowRgIhAPqP6gckt5GXH-fLEv5Cg2vcg7upBxPU4Doh2zshdgCNAiEAqrP-9k3ySo7QyYhqQCESvz0lC8laHox06_kyE8r-oYo%3D&cpn=RZMRM0hX5vjkksRu&cver=2.20240524.00.00&fallback_count=1&rn=27. (Reason: CORS request did not succeed). Status code: (null).

Cross-Origin Request Blocked: The Same Origin Policy disallows reading the remote resource at https://rr4---sn-a5msenle.googlevideo.com/videoplayback?expire=1716635853&ei=bXRRZsXhJonb6dsPr4S9gAo&ip=104.237.233.106&id=o-AAWbYs_c1wgN4MrU7OqKDoN_4E89qYQsMLYgu196ZLvi&source=youtube&requiressl=yes&xpc=EgVo2aDSNQ%3D%3D&mh=Wx&mm=31%2C26&mn=sn-a5msenle%2Csn-p5qlsndd&ms=au%2Conr&mv=u&mvi=4&pl=25&spc=UWF9f9R71vLfm1F-HqlKYmIsTmmQ76vISxWKiaa8DnBJ1RFYdP1uqbuRYDqk&svpuc=1&ns=nZ43uaQFzt5gq9VgUw-rDA0Q&sabr=1&rqh=1&mt=1716613539&fvip=3&keepalive=yes&c=WEB&smc=1&n=DtTlBfhfTkjbJA&sparams=expire%2Cei%2Cip%2Cid%2Csource%2Crequiressl%2Cxpc%2Cspc%2Csvpuc%2Cns%2Csabr%2Crqh&sig=AJfQdSswRQIgBpryxlELSlbPjito5Ju6_RfQzqVcw10u03ydIYI41lcCIQCgk-eJSUpHsjpfCC08Zif4lFJZY3GVMbfofGXPQsdZcw%3D%3D&lsparams=mh%2Cmm%2Cmn%2Cms%2Cmv%2Cmvi%2Cpl&lsig=AHWaYeowRgIhAPqP6gckt5GXH-fLEv5Cg2vcg7upBxPU4Doh2zshdgCNAiEAqrP-9k3ySo7QyYhqQCESvz0lC8laHox06_kyE8r-oYo%3D&cpn=RZMRM0hX5vjkksRu&cver=2.20240524.00.00&rn=1. (Reason: CORS request did not succeed). Status code: (null). ```

I got this messages on the logs and sometimes the session freezes when I'm using Firefox: mai 24 20:12:16 glados firefox.desktop[9642]: [Parent 9642, IPC I/O Parent] WARNING: process 50331 is a zombie: file /builds/worker/checkouts/gecko/ipc/chromium/src/base/process_util_posix.cc:245 mai 24 20:12:16 glados firefox.desktop[9642]: [Parent 9642, IPC I/O Parent] WARNING: process 50253 is a zombie: file /builds/worker/checkouts/gecko/ipc/chromium/src/base/process_util_posix.cc:245 mai 24 20:12:34 glados firefox.desktop[9642]: [Parent 9642, IPC I/O Parent] WARNING: process 52142 is a zombie: file /builds/worker/checkouts/gecko/ipc/chromium/src/base/process_util_posix.cc:245 mai 24 20:13:28 glados firefox.desktop[9642]: [Parent 9642, IPC I/O Parent] WARNING: process 51884 is a zombie: file /builds/worker/checkouts/gecko/ipc/chromium/src/base/process_util_posix.cc:245 mai 24 20:14:07 glados firefox.desktop[9642]: [Parent 9642, IPC I/O Parent] WARNING: process 52087 is a zombie: file /builds/worker/checkouts/gecko/ipc/chromium/src/base/process_util_posix.cc:245 mai 24 20:14:13 glados firefox.desktop[9642]: [Parent 9642, IPC I/O Parent] WARNING: process 50755 is a zombie: file /builds/worker/checkouts/gecko/ipc/chromium/src/base/process_util_posix.cc:245 mai 24 20:14:19 glados firefox.desktop[9642]: [Parent 9642, IPC I/O Parent] WARNING: process 50806 is a zombie: file /builds/worker/checkouts/gecko/ipc/chromium/src/base/process_util_posix.cc:245 lines 8174-8233/8233 (END)

This has been a problem for a while, currently on Firefox 126.0 and Nvidia 550.78. I can work around the problem by forcing webrender to use software mode.

When using HW accelerated webrender with my Nvidia graphics card everything works fine until the PC wakes from sleep, then graphics are broken and Firefox needs restarting. Most noticeable for me is when looking at Grafana graphs they will look like random lines, and my Frigate NVR snapshots only display some of the time.

Is there anywhere in Firefox that will show a log of any error messages to do with the graphics card? I would like to try and fix the problem rather than disabling HW acceleration, but with no logs to look at that is impossible. No other programs seem to have a problem with resuming from sleep, and no error messages are shown in any of the system logs.

Firefox's website appearance settings include a setting to force a light theme, force a dark theme, or to have sites automatically adapt to the theme of the browser. I feel that's not exactly what I want. I don't want the browser's theme to have anything to do with themes of the sites I'm viewing, nor to force light or dark. I think I'd rather just use the site's default, or if not that, set a theme on the site itself. Is there any way for Firefox to just not meddle in a site's theming at all?

I kinda just don't want any connection between the theme of my operating system, the theme of my browser, or either of those and the theme of websites, and none to force a theme on any of the others. I'm not sure why that seems so desirable nowadays, but I don't want it.

I added my own shortcuts and deleted all the preset ones (Wikipedia, Twitter, Amazon etc). On deleting the last one of the default ones, the 'Add a shortcut' button has completely disappeared. Is there another way to create a shortcut?

I can control the number of rows. I can control whether to accept sponsored shortcuts. (I have chosen *not to.) I can control whether I want 1 or more rows to reflect recent activity. (I have chosen *not to.)

Yet until I pin my own preference to *every shortcut, it seems I cannot stop FF from putting "suggestions" in the empty slots, based on nothing but a single web visit.

This is annoying.

Moreover, if I visit several different pages connected to the same site, FF will put them all into shortcuts, with the same icons.

This is possibly even more annoying.

I am coming from Brave. They don't do things like that, although there is obviously a reason I'm giving FF a look.

But I would recommend, heartily, a home page shortcut box in settings that one could click (and actually *mean* something), like: "Don't ever suggest or fill in any shortcuts for any reason. I will handle it, and I don't like correcting your mistaken ideas."