Firefox Community Forum

Firefox just updated to 157.0 and will no longer open PDFs in a default viewer even when I change the settings. My setting say they are set to open in Mac Viewer, but continue to open in browser. I even tried to set it to open in Adobe still opens in my browser.

I'm getting this when trying to sign into mine and my fiance bank accounts why Secure Connection Failed

The page you are trying to view cannot be shown because the authenticity of the received data could not be verified. What can you do about it?

The issue is most likely with the website, and there is nothing you can do to resolve it. You can notify the website’s administrator about the problem.

Error Code: PR_END_OF_FILE_ERROR

Secure certificate error so can't login to my password manager. This has happened since recent Firefox upgrade Here is code I was to send 18.85a12b17.1791472550.7f9ca3b0

I often need to sign into a school system - Bassettusd.org - and they then require a sign-in email and password. I have used Firefox to sign into this system a thousand times with no issue. Today, I had an odd glitch where a Firefox window with about 8 tabs open suddenly shut down. None of the other Firefox windows I had shut down besides this one. I decided to re-start the Mac Laptop and try signing in again. This time I got the error message above. It also came with a long message with a time stamp and ID info. Long story short, I was no longer able to sign in to my account via Firefox. Fortunately, I could do it in Safari, but I'd like Firefox to work. First I deleted all the cache. That didn't help. Then I deleted Firefox entirely and re-downloaded it from the internet. (ver. 157.0.1) I STILL cannot

Context: In the customize sidebar section, if the "Vertical tabs" checkbox is checked, the vertical tabs can be switched between showing names and favicons, or just favicons. If, additionally, "Hide tabs and sidebar" is checked, then vertical tabs instead can be switched between showing names and favicons, or being completely hidden. (These settings are in the photo I uploaded)

The recent update seemed to add a feature I had been really wanting from vertical tabs. I could switch between all three states: favicons and names, just favicons, or completely hidden. I could do this by dragging the vertical tab pane smaller or bigger. A few days later, though, it stopped working, but I didn't change any settings (as far as I remember).

Is there any way to get the three-state vertical tabs back? They were really nice!

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"

I synced the wrong Firefox profile to mY Mozilla account. I hence deleted the account to get a reset. But now I can't sync any more, because I get the message: your profile was previously synced to a different account, create a new profile. How can I activate sync again?

We often encounter this situation: both at home and at work, I don't want the Firefox password and browsing history on my home computer to be synchronized to the Firefox on my work computer. After all, there are many private passwords and browsing histories involved at home. However, the passwords and browsing histories related to work can be synchronized to my home computer, so that we can continue to view the records from work at home However, I haven't found this function anywhere in Firefox

After the last Firefox update, I can no longer open download files (PDFs) from websites in Mac Default Viewer. I have tried the other settings such as open with Adobe, Ask, etc., but they continue to only open in the browser. For work, I download hundreds of documents from a county site, so having them open in my default viewer when I click the link was very useful for a productive work flow. I have tried to open files with my viewer from other sites, but it fails with those too. My tech team tried to help but seems to be a Firefox issue. Settings - Downloads - Files and Applications - PDF - Use Preview (or anything else) is not working. Firefox 157.01, Apple M2 Pro, Tahoe 26.6.2.

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.

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 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."