Firefox Support Forum

Hello

There are a number of PDF documents on my computer that unfortunately won't open in Firefox. Firefox is my default for opening PDF documents but I also tried Microsoft edge and they didn't open on that either. Some of them are from 2 1/2 years ago, some say 4-6 years ago. These files used to open on my computer without problems but alas not anymore! :( When I try to open them in Firefox I get a completely blank document with no error message. When I try instead to open them with microsoft edge I get the following error "We can't open this file. Something went wrong"

Thanks!

I love Firefox (FF), I use it on my home PC, work laptop, and my smartphone. I use a FF account for synchronization which is quite handy. But why, WHY every time I log into my account I'm getting an email: "Last reminder to sync devices! bla bla bla" Can not FF learn that my account uses sync? I don't have more devices for extra synchronization :) Is that really hard?

When I open Google Maps it doesn't show the normal icons for navigation on the map. It doesn't do anything when I have hardware acceleration enabled and I type something in the search bar. If I disable hardware acceleration it does a search, but in no way can I get it to show the place I want to see. It just shows the map of Rotterdam, where Google thinks I live based on my IP address.

It does work in Safari though, so it's a Firefox problem. I hope you can fix it. Google seems to give the FF team lots of problems.

I am using firefox 91 beta.

after a new installation i can no longer access the website Add idealo.de as a search engine, neither in the add-ons nor in your own sophisticated search engine.

who has a solution for me?

Many Thanks.

Since a couple of weeks my Firefox browser for Windows 10 64bit has issues. Last update 90.0.2 did not work either,and the issues is still there.

Internet is extremly slow,some sites will not open and i cant logg in to Facebook.

Under settings,i have tried different settings. Right now i have the standard setting. Under Help,i have tried to restore,diagnos and clean catch and restart,but it has not solved the issue.

What could be causing these issues? Do i have to do some special settings or do i have to add some Add-ons/Extensions in order to have Firefox work normal again?

I'm using Firefox 90 on Linux (Fedora 33) and MATE Desktop. Before I upgraded to Firefox 90, I set widget.non-native-theme.enabled to false to revert the scrollbar appearance to the system theme, as per this question: Scrollbar appearance changed after Firefox upgrade. It worked on Firefox 89, but as soon as I upgraded to Firefox 90, the scrollbars went back to the non-native appearance.

After the upgrade, the widget.non-native-theme.enabled is still set to false, but apparently ignored. However, I noticed that the other widget.non-native-theme.gtk.scrollbar.* settings that allow scrollbar appearance customization inside Firefox are ignored as well. If I set widget.non-native-theme.enabled back to true, then the other scrollbar settings work as expected. This tells me that widget.non-native-theme.enabled does work, but the system scrollbar theme is not picked up as expected. This looks like a bug to me.

Keep my FF and TB installs as separate as possible from my OS installs. Have profiles in their respective app folders on a separate partition. I boot to different VHDs or partitions for choice of OS. Using batch file to delete FF and TB parent.lock files, but still having issues. Like FF bookmarks and history being used by another another app and TB not opening at all while maxing out CPU. Surely a better way to do this without repeatedly deleting FF's security files? Like a configuration settings for multi-boot systems? Thanks

"The bookmarks and history system will not be functional because one of Firefox's files is in use by another application. Some security software can cause this problem."

How to make the tabs much smaller in version 89? I use the Menu Bar a lot and don't want to hide it to remove the huge space created on the Taskbar with this new version.

I need to reorder Firefox windows on the taskbar badly!!!!!!!!!!!!!!! Also it would be useful to have custom titles. Both things should persists after PC restart. I tried couple programs, but they don't work. Devs said: position of Firefox window on the taskbar is store in Firefox and their program has no way of remembering that! Also windows get randomly shuffled each time, it is impossible to use like this. It takes me forever to find right window. It is annoying the hell out of me. How Firefox dev team doesn't fix something that basic??? This is so stupid...

Please tell me there is some solution...

It seems that most browsers use the operation system options do determine the first day of the week in html browser date pickers. Firefox does not seem to. I can't figure out how to change it.

How can I change it?

I am using linux kde neon on wayland. Firefox version 90. On ubuntu with gnome 40, my touchpad zoom works. I didn't have any problems on kubuntu either. But on Kde neon, gestures don't work. I forced the MOZ_ENABLE_WAYLAND = 1 setting to enable wayland support. About: support shows that wayland is supported by the browser. Also I tried the settings MOZ_USE_XINPUT2 = 1 and GTK_USE_PORTAL = 1, but they didn't help either. Gestures in the system itself work.

I've updated to the latest MacOS Monterey beta and all gesture plugins are broken when used with the trackpad. This is not unique to Firefox, it also happens in Chrome.

If you try to make a two fingers gesture (right click) on the trackpad, it will start scrolling the page instead of registering as a right click and hold for the gesture to start, making gestures impossible to perform.

Does anyone know about a work around for this?

Having lots of problems logging in and with functionality on websites I use a lot, when I use firefox that I do not have if I switch to chrome... like airline websites I go to where my login via firefox won't work, banking sites, shopping sites, sites where I have profiles.... I either can't login or sites don't function properly..... but if I switch to chrome things work fine?! like when I enter my login info on aa.com via firefox I get this page which is an error. I enter the same login info on chrome and it takes me to my aa.com account profile and access

I am using Firefox on Linux (Ubuntu 20.10) to work from home over OpenVPN. Recently the VPN configuration was changed to use split tunneling to improve our internet connection. Since then I have had several DNS resolving issues in Firefox.

We use an on premise DNS server as an alternative to `localhost` domain names so we can access other developers' environments and so a few services can do the same. Our URL structure is like projectname.[optional personal identifier.]localhost.[type].nl. Without the [optional personal identifier], or when nothing is configured for it, the ip address is 127.0.0.1.

In Linux' OpenVPN configuration I have "Use this connection only for resource on its network" enabled for IPv4 and IPv6 is disabled (to benefit from split tunneling). With that enabled Firefox usually fails to resolve such development hostnames.

- As far as I know I do not have DoH enabled (and the about:networking log further down tells so too). - I do have `dnsmasq` enabled (with configuration for the above domain formats to route to 127.0.0.1 also) in an attempt to fix some issues before the split tunneling was configured correctly. And in an attempt to try and get Firefox to handle these DNS resolving issues. - `dig` on the command line for the same domain works just fine. - Adding hostnames to /etc/hosts works. But that's becoming a chore, working on dozens of projects over months.

Why is Firefox failing to resolve such domain names? Should I just create a Bugzilla issue?

I created a log with about:networking set to `timestamp,nsHostResolver:5`:

[Parent 5337: Main Thread]: I/Logger Flushing old log files 2021-06-09 07:42:58.009170 UTC - [Parent 5337: Socket Thread]: D/nsHostResolver Resolving host [somedomain.localhost.type.nl]<^partitionKey=%28http%2Ctype.nl%29> - bypassing cache type 0. [this=7f4d8a1732e0] 2021-06-09 07:42:58.009195 UTC - [Parent 5337: Socket Thread]: D/nsHostResolver No usable record in cache for host [somedomain.localhost.type.nl] type 0. 2021-06-09 07:42:58.009200 UTC - [Parent 5337: Socket Thread]: D/nsHostResolver NameLookup host:somedomain.localhost.type.nl af:0 2021-06-09 07:42:58.009206 UTC - [Parent 5337: Socket Thread]: D/nsHostResolver NameLookup: somedomain.localhost.type.nl effectiveTRRmode: 1 flags: 2001 2021-06-09 07:42:58.009210 UTC - [Parent 5337: Socket Thread]: D/nsHostResolver TRR service not enabled - off or disabled 2021-06-09 07:42:58.009215 UTC - [Parent 5337: Socket Thread]: D/nsHostResolver NativeLookup host:somedomain.localhost.type.nl af:0 2021-06-09 07:42:58.009229 UTC - [Parent 5337: Socket Thread]: D/nsHostResolver DNS thread counters: total=1 any-live=0 idle=1 pending=1 2021-06-09 07:42:58.009236 UTC - [Parent 5337: Socket Thread]: D/nsHostResolver DNS lookup for host [somedomain.localhost.type.nl] blocking pending 'getaddrinfo' or trr query: callback [7f4d386f5e80] 2021-06-09 07:42:58.009250 UTC - [Parent 5337: DNS Resolver #22]: E/nsHostResolver DNS lookup thread - Calling getaddrinfo for host [somedomain.localhost.type.nl]. 2021-06-09 07:42:58.076889 UTC - [Parent 5337: DNS Resolver #22]: D/nsHostResolver Calling 'res_ninit'. 2021-06-09 07:42:58.137055 UTC - [Parent 5337: DNS Resolver #22]: E/nsHostResolver DNS lookup thread - lookup completed for host [somedomain.localhost.type.nl]: failure: unknown host. 2021-06-09 07:42:58.137146 UTC - [Parent 5337: DNS Resolver #22]: D/nsHostResolver nsHostResolver::CompleteLookup somedomain.localhost.type.nl 0 804B001E resolver=0 stillResolving=0 2021-06-09 07:42:58.137152 UTC - [Parent 5337: DNS Resolver #22]: D/nsHostResolver nsHostResolver record 7f4d63a0a7c0 new gencnt 2021-06-09 07:42:58.137162 UTC - [Parent 5337: DNS Resolver #22]: D/nsHostResolver Caching host [somedomain.localhost.type.nl] negative record for 60 seconds. 2021-06-09 07:42:58.137166 UTC - [Parent 5337: DNS Resolver #22]: D/nsHostResolver CompleteLookup: somedomain.localhost.type.nl has NO address 2021-06-09 07:42:58.137172 UTC - [Parent 5337: DNS Resolver #22]: D/nsHostResolver nsHostResolver record 7f4d63a0a7c0 calling back dns users status:804B001E

People, have Firefox 32x v89.0.2. Say me please, how return into context menu propertys of downloading picture (size,type,ext,KBytes)? Screenshot enabled. On the screen picture propertys visible only in heading of window (red), cont menu not ScrShoting  ;*( . All this propertys may be viewing on tab "Info about page" => "multimedia" => "info about picture".

In ver 60-70 (if my memory not wrong) if you open picture on new tab and save it on the harddisc this propertys also be in context menu "save PNG 320x240....." and 'SHIFT+' catapult you to the propertys multimedia of "info ab page". Where it lost?

Is it possible to convince the developers to return as it was?

With respect, PaulSnowMan@yandex.ru

Hello :-)

Can you help me?

After I delete my timeline the auto completion in some cases doesn't work any mory. For example Google:

[See screenshot in attachment]

Before I delete the timeline Firefox always suggested "www.google.de"

How can I fix this?

Many thanks! Micha

I have Firefox on a couple of (Windows 10) PCs. This problem is happening on one of them. It has two profiles (users), and it's happening on both.

If I open Firefox, and then trying going to google.co.uk, or do any google related search, almost everytime there is an obvious 30-40s delay. Indeed, during this time I can even open up other web sites (immediate), and trying google.co.uk again, and delay continues to occur.

Opening up the Network Console in Firefox, the GET request can be seem and then like clockwork there is about a 41000ms delay until it then continues.

If I open in TroubleShoot mode, same issue.

If I open in a Private Window, the problem does NOT occur.

This problem does NOT happen on my other PCs with Firefox, or any other browser on the PC in question.

This is very frustrating :( You open firefox to do a google search and it takes tens of seconds to resolve (on the first attempt) :(

When hit shift and click somewhere in the webpage or type something, the "Page Inpector" keep poping out (see attached screenshot), this is so annoying that I basically cannot type any capital letters. I have tried the option "Refresh Firefox", the browser seems to be set to default mode, but the issue still exsist. Tried for a new keyboard, the same. I searched the forum, but unfortunately cannot find a proper solution. Hope anyone can help me with this, otherwise I have to consider to change my default browser (which I really don't want to because of such a simple but annoying problem).

Thanks a lot for anyone could provide any suggestions !

Whenever I open my firefox browser (always up-to-date), certain add-on extensions specifically, IDM and Grammarly fail to load always. In order for them to load, I still need to go to the "manage extensions" then turn on-off in order for them to work. I have tried different solutions that this link provided link text but none of them worked. Can anyone offer a definite solution in my problem?

For the last couple of months I've been having an issue with Firefox freezing when I bring up a news article on Yahoo. It only happens when there is a video attached to the article, the video and the text of the article won't load. After a few minutes there is a message saying "This page is slowing down Firefox. To speed up your browser, stop this page". All of the Yahoo news articles work fine when I bring them up in Chrome. How can this be fixed??