Firefox Community Forum

My system • Windows 11 on a Dell laptop. • Firefox Version 157, my default browser. • Norton 360 Standard. • Two Firefox profiles; the warning appears in both. • Firefox Troubleshooting Mode does not eliminate the warning https://support.mozilla.org/en-US/kb/sslkeylogfile-warning?utm_source=chatgpt.com

What I have observed The warning appears on Firefox network-error pages, including when the internet is disconnected or I enter an incorrect URL. A particularly reproducible example occurs after I successfully log in to Kotak Net Banking and select Help → Raise a Query. Firefox then displays a connection/privacy warning associated with the embedded page. I do not see the same behaviour in Chrome or Firefox Private Browsing when performing the equivalent Kotak steps. Troubleshooting already completed 1. Norton Safe Web HTTPS scanning was disabled and re-enabled without resolving the issue. 2. QUIC/HTTP3 scanning, WebSocket Protocol Scanning and DNS/DoH scanning were individually tested without resolving it. 3. Firefox Enterprise Policies are inactive. 4. I found no SSLKEYLOGFILE entry in either Windows User Variables or System Variables. 5. Norton and Dell malware scans found no malware. 6. The warning also occurs when I connect through a mobile phone hotspot rather than my usual BSNL connection. Questions for Mozilla's technical contributors 1. Does this warning establish that Firefox detects SSLKEYLOGFILE, or could another mechanism produce the same message? 2. Can the variable be inherited by Firefox from a parent process or injected into its running process even when it is absent from the Windows User and System Variables? 3. What is the safest way to identify which process or security product is setting it on Windows 11? 4. Is there a known interaction between Firefox 157 and Norton 360 Standard that could explain this behaviour? 5. What evidence should I collect to distinguish a Norton issue from a Firefox issue without disabling security protections or modifying Windows settings? I am not looking to disable security features indiscriminately. I want to identify the actual cause and, if Norton is responsible, determine the precise setting that needs attention. I would particularly appreciate a response from a contributor with Windows networking, Firefox TLS or security-software diagnostic experience. Thank you.

Is it really not possible to adjust the font size? I found no setting for that. I only can cheange the text size of webpages, but not for title or menueor other thing a the top of the firefox window. These are readable with thunderbird, but not with firefox after I changed to a new laptop with higher resolution. Size of elements should be measured in points, mm or inches an not in pixels, as pixel sizes are depending on HW. The attached image shows the comparison between thunderbird and firefox.

I've been using firefox for a little while- maybe three months now. I'm no expert on any of the config options. I run firefox using the built in VPN that my friend showed me how to enable, and I've been using it since. But now, as of roughly today, whenever I enable the VPN, no websites will load. At all. When I turn it off, they load instantly. But whenever I turn it on, it just gets stuck loading forever and ever, never actually getting anywhere. I tried enabling network.dns.disableIPv6 in the config page, because that's what I saw on a mozilla support page- nothing. Didn't do anything. The browser.ipprotection.enabled is still on, and I didn't change anything in settings. There was a firefox update very recently, but everything still worked with the VPN on. I just updated my computer, but I don't think that's it either because it wasn't loading things earlier today either. Not sure how to fix this. Please help?

I have a Mini PC connected to my TV. I use the Top Sites shortcut feature to remind me of which TV shows I'm streaming. Each time I complete an episode, I edit the Top Site and change the URL to the next episode, so that, when I come back and hit the shortcut -- it keeps my place in the series.

This all worked perfectly until the recent Windows desktop build of 157.0.1. Now, when I edit the shortcut and click save, it doesn't Save the edit. Instead -- it creates a duplicate shortcut in my bottom row.

It doesn't matter which Top Site I edit -- they all do it.

Can anyone duplicate this bug?

When uploading photos, Firefox is not Showing the last folder used. Normally, when uploading a photo from a certain folder, the next time you do that, the same folder shows up unless you choose a different one. Now, it keeps going to one specific folder even though I uploaded from a different folder previously.

Example: say I uploaded a photo from my folder "sympathy pics". Then I upload a photo from "my documents". The next upload pop-up box still pops up the "sympathy pics" folder when it should bring up "my documents".

Can someone please help me?

I am having difficulty understand where to start downloading Bookmark Dupes. I am not sure if it is the answer to my problems. I want to reorganize folders mess with duplicates ,layout order deletes and duplicates while maintaining most content

Don't know where it should be. But here is the issue: I check my personal email often, so I used to open Firefox, click the address bar, and my Outlook would be at the top. Now, for whatever reason, Firefox tries very hard to make that disappear, even though that is my most-used website. First, it'll drop a few places in drop-down, then some more, and then disappear. To bring it back, I'll have to delete unwanted links (the ones I open like once a month!) from history, and after quite a bit of work, Outlook will be back. Then rinse and repeat.....How can I fix this?

I get this message when trying load SingPass QR Code: "Secure Connection Failed. An error occured during a connection to track.file.gov.sg. SSL received a record that exceeded the maximum permissible length."

When downloading the download shows a where it tried to file the download then a "FAILED" message occurs immediately after the file location is given. This happens on ALL downloads. This has started since the last upgrade. How do I print the downloads?

I downloaded the newest Firefox two day ago on my Windows 11 desktop and tried to on my iPhone 15. I lost all my passwords.I still have gmail on my phone, but I don't know the password now.

Title. 156.0 had NVIDIA Video Super Resolution working just fine. 156.0.1 has broken it on my setup. Nothing I have done has brought it back - toggling settings, clearing caches, forcing it on in about:config, etc. The plugin seems to be broken.

Was working just fine for over a year prior.

Latest Stable Firefox 156.0.1 RTX 5080 Driver 596.49 (May '26)

Does not show as working in the Control Panel, and is clearly not working on any video site. YouTube, the BBC, and Twitch were the ones most tested.

Please consider a fix. Thank you.

Environment: - Firefox 157.0.1 (64-bit) - Windows 11 (build 26100) - IME: Microsoft Pinyin (TSF)

Steps to reproduce: 1. Open any page with a text input (e.g. chat.deepseek.com). 2. Type quickly in Chinese Pinyin, e.g. "zuihou". 3. At some point during composition, the current composition ("zu") is committed as raw pinyin (with the apostrophe separator preserved), and the next key ("i") starts a new composition.

Expected behavior: - The composition should continue normally, and all keys should be consumed by the IME. - No raw pinyin string should ever be committed.

Actual behavior: - Firefox delivers the key event to the web page with keyCode 73 ("i") instead of keyCode 229 (Process), so the IME never receives it. - The IME's internal composition state stays at "zu" while the browser display has already moved on. - When the next key arrives, the IME commits the stale "zu" as raw pinyin and starts a new composition. - This results in the composition being split into two parts, with the first part committed as raw pinyin containing the "'" separator.

Additional context: - The problem occurs only in Firefox. In Edge (Chromium) on the same machine, typing the same sequence for several minutes never reproduces it. - It does not occur with every key; only certain keystrokes are affected, and it seems to require fast typing. - The issue is not caused by keyboard hardware, third-party software (AutoHotkey, yasb, PixPin, Intel drivers, MuMu), or key injection. A low-level keyboard hook log shows no injected events (inj=0 for all 204 keystrokes).

Log excerpt (from a JS composition probe injected into the page): [ime] 04:20:54.740 keydown key=Process isComposing=false keyCode=229 repeat=false [ime] 04:20:54.740 COMPOSITIONSTART data="" [ime] 04:20:54.741 compositionupdate data="z" [ime] 04:20:54.831 keydown key=Process isComposing=true keyCode=229 repeat=false [ime] 04:20:54.833 compositionupdate data="zu" [ime] 04:20:54.928 keydown key=i isComposing=true keyCode=73 repeat=false <-- key 73, not 229 [ime] 04:20:55.324 keydown key=Process isComposing=true keyCode=229 repeat=false [ime] 04:20:55.326 COMPOSITIONEND data="zu" <-- stale composition committed [ime] 04:20:55.327 COMPOSITIONSTART data="" [ime] 04:20:55.327 compositionupdate data="h"