Firefox Support Forum

I am currently using Firefox version 77.0 in windows 10. I noticed few things that when I try to open some of the PDFs it shows "This PDF document might not be displayed correctly" and just blank white page shows up (image included).

I use few extensions which I disabled them completely when I read PDF but still I am unable to access PDF. While same PDFs are easily readable by other browsers like Chrome or Edge.

Please let me know is it a bug or there is some settings to tweak. Thanks in advance.

Hello , recently I wanted to download a file from the internet , so I clicked on the download link , and Firefox download manager show two options that are OPEN or SAVE , I mistakenly clicked on OPEN and the download process started , after the download finished the downloaded file opened in temp directory and I closed it , next time that I wanted to open the downloaded file it wasn’t in the download folder and the Firefox download tab said that the file moved or deleted ,So my question is that is there a way to locate this file ? , I checked the Temp file but I couldn’t find it , if there is a way to find this file , please tell me .

Thanks for your time .

I just upgraded to Firefox 77, x64, Windows 10 2004.

Firefox 76 already broke LockWise - https://support.mozilla.org/en-US/questions/1287008

Now Firefox 77 breaks 99% of all websites. (See attached screenshot.) www.example.com www.google.com www.wikipedia.org etc

Somehow, support.mozilla.org works, UNTIL I try to log in.

I've tried incognito mode, safe mode, etc. When I change charset of the page, the text displays differently, but it's still a useless mishmash.

--- BUT --- when I open developer tools, click the HTML request and click the Response tab, the HTML renders correctly there.

After updating from 77 to 78.0.1, I've experienced a large number of tab crashes ("Gah. Your tab just crashed.") across multiple sites. No crash logs are available in about:crashes. I've tried:

• Starting in safe mode
• Refreshing Firefox
• disabling security software (Webroot SecureAnywhere)
• Disabling hardware acceleration
• Making sure latest drivers and Windows updates are installed
• Run Windows system file checker tool (no errors found)

I use Firefox with screen reading software, so it is possible the issue may be accessibility related. I've tested with JAWS and Windows Narrator and experience the tab crashes under both.

OS is Windows 10 Version 1909 (OS Build 18363.900)

Hi ---- Wondering if anyone can help with this. Every time I open Firefox (my default browser), I get a spinning wheel, the browser doesn't load and my whole system crashes.

I have tried reinstalling Firefox - same problem occurs. Anyone got any tips? I'm running a mac on El Capitan and have been for a while with no browser problems.

Firefox is not working at all no ad ons work at all i have done eveerything that i was told to

by other  techs  i hhave uninstaled reinstall  so many times it is ridiculous about to stop using   firefox

I keep getting SECURE CONNECTION FAILED trying to sign in to my Gmail Email account. It was fine yesterday. Everything else (websites etc) I can accesson Firefox Browser.

HOW CAN I SORT THIS?

Today when I started Firefox it auto-updated to version 77, and all web-pages looked like a mess of weird symbols like the ones in the screenshot I attached.

I tried disabling all addons and plugins, and some other stuff but nothing worked.

So I downgraded to 76.0.1 and everything works fine, it's definetly a problem with version 77.

I guess I won't be updating until I know this problem was adressed.

I have updated to Firefox 77. I go to https://accounts.firefox.com and I met with a whole page of these symbols:

�??�YYs�H?�+lG����:?�4���,7�1z�(U?�@?ց�~�fI?C�����}@�TUy~��)}�?�q��ie?��?����BX�r��� �nQ�?����K#T�??�4j�Ѻ�<=�DѾJ_bvh=W?

I can browse web pages fine, but I cannot gain access to login to my FireFox Account. I have had to use another browser to post this as I needed to login to my Forefox Account in order to do so.

Why am I seen these symbols?

I've run into a strange issue lately - certain sites are left unable to sign in. I've tried disabling add-ons, clearing cache, cookies, history, lowering my security settings, adding site exclusions, disabling VPN, refreshing firefox, uninstall/reinstall, uninstall/clear data/reinstall/refresh firefox, everything. Still, nothing.

One site in particular is Dropbox. I enter my creds, it asks for my authenticator, error. So I tried in another browser and it works fine. So it's definitely a firefox issue.

I did disable my authenticator temporarily, and was able to sign in on Firefox. However the moment I re-enabled it, I'm no longer able to sign in again.

I have a few other sites that won't sign in either. Some give errors, some accept my password then refresh to the non-signed in page.

I'm at a loss. I've tried everything I can think of. And confirmed all sites work in other browsers.

OS: Windows 10 OS Version: 1909 Firefox: 78.0

I am having severe issues with unresponsive scripts and Firefox not responding. Once the scripts stop responding on one page, it spreads to the others I have open. I've cleared cache/cookies/data, I've gone into the configuration and changed the seconds to see if the script will complete, and I've tried the recommended extension (Javascript stop and go?), but then web pages won't load. I'm at a loss as to what else to do. Could this be a malware/virus issue?

The browser also stops responding, and once it gets started, it keeps doing so to the point I can't use the browser.

ctrl-F4 does still work to close a tab but ctrl-W doesn't ctrl-T (new tab) doesn't

In writing this I also found ctrl-N has stopped opening a new window, ctrl-O ctrl-+ ctrl--(minus)

(They all do the expected thing in Thunderbird)

What have I done?

Hi! I've switched to Firefox quite recently and I love pretty much everything about the browser. The only problem I've been experiencing is that whenever I try to print a page the whole browser crashes. I've tried removing all the settings for printing in prefs.js but that didn't seem to help in any way and the crashes don't turn up in the about:crashes tab. Has anyone else been experiencing this and perhaps knows how to fix it?

Firefox complete broke for me. I have a Dell XPS laptop with windows 10, purchased about a month ago. Yesterday, when I clicked on firefox, it opened frozen with no menu or toolbar at the top. I restarted my computer to no avail. This morning, I reinstalled firefox. It seemed to be working fine, but now has stopped. Now, when I open it, it is the same. Frozen with no menu or toolbar at the top (see attached screenshot). I have one add-on, which I added, Ad-Block Plus. Any ideas?