Fórum da Comunidade de Firefox

I am trying to disable the text segmentation behavior in latest Firefox(v151), but I have encountered an issue where changing the preference in [about:config] does not seem to have any effect.

Details:

   Target Preference:  intl.icu4x.segmenter.enabled
   Current Setting:       false

   Problem: 
   Even after setting this to false (and restarting the browser), the text segmentation behavior (such as word selection logic) remains unchanged and appears to still be using the ICU4X engine.

   Reference:
   https://support.mozilla.org/en-US/questions/1440483#answer-1638092

I would like to know:

  1.  Has this preference been deprecated or hardcoded to true in recent versions of Firefox?

   2. Is there any other way to disable the ICU4X-based segmenter or revert to the previous segmentation logic?

   3. If this is a known change, is there an alternative preference to adjust how word selection handles specific languages (e.g., Japanese)?

I am using the latest version of Firefox. Any insights or workarounds would be greatly appreciated. Thank you in advance for your help!

For the past week, I've been trying to set Firefox as my default browser on Windows 11 Pro (I've been using Firefox for years), but after restarting, the Edge browser reappears, even for PDFs (we use Adobe Acrobat) and Paint for TIFF and JPEG files! It's outrageous that Microsoft is forcing users to use Edge. This never happened to me with Windows 7 or Windows 10. I'm completely dissatisfied with Microsoft's policy of forcing users to use Edge! I've tried configuring regedit, gpedit, taskchd, etc., in a thousand different ways, and after restarting, the intrusive Edge returns! Is there any way to prevent this? Mozilla should fight this! It's unacceptable that we have to be tied to Microsoft's monopolistic whims!. Do you have any solution? Thank you very much!! Leonardo

FF used to have a "Close right tabs" menu point. EXCELLENT. Fast. Useful. Since some time, feature creep has expanded that into "Close several tabs" and the sub-menu close right tabs close left tabs close all tabs

Minor point: I use close right all the time, never though close left or close all ("Close all" would be "move to start", then "close right", anyway) So, I go one level further down for nothing added.

Major point: Inadvertently closing to the left or closing all destroys a lot of tabs I do not want to go.

This new "feature" is annoying and harmful. At the very least, developers should ask users whether they actually want that stuff. Before spending/wasting time on it.

Now, "close left" and "close all" being unfortunately present: Is there a way to remove the two dangerous options and stay - as before - with just "Close right tabs"?

Здравствуйте! При установке параметра "Настройки - Основные - Открывать Firefox автоматически при загрузке компьютера" в реестре создается запись HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run - Mozilla-Firefox-E385C0CFD98A494C: "путь-к-файлу\firefox.exe" -os-autostart Что за параметр командной строки -os-autostart? На на сайте поддержки Mozzila не нашел, ни интернет не подсказал. Я понимаю, что это автозапуск Firefox при запуске Windows. Но что конкретно делает данный параметр?

It was nice when FF was simple to use....unimcumbered with all the options...like the latest...profiles.

Why? It's getting to be as complicated as E and C..you don't need all those options - that's why I use FF.

Get rid, or allow the user, to pick and choose, and dump the unwanted stuff from cluttering the tool bar and other options. Just a suggestion that can be made to FF any longer. Use to be they'd welcome feedback.

When I select a line of text, normally it would get deleted/overwritten when typing a new line of text, but when I select text in Firefox and begin typing again, it simply deletes the first word in the selection and keeps the rest. Is there a setting to have ALL text selected deleted/overwritten when new text is entered? Selecting one word overwrites the whole word but when an entire line to be deleted is selected, only the first word is deleted and typing begins where that word ends.

When uploading files with Firefox, I click the upload button, and the file browser window appears to upload files.

For as long as I can remember, it always defaulted to the last folder location that I uploaded a file, but just a few days ago, it stopped working, and always defaults to my home folder.

How can I make the upload window pop up, default to the last uploaded location? My OS is Linux Mint Cinnamon.

When I press F12 to use the developer tools and try to change the width of the panes by click and drag the divider there now seems to be a limit to the panes width that was not there before. I'm not sure with what version I stated to notice this. I use to be able to drag the right hand panel fairly far over to the left and could take up about 75-80% of the width of the developers window. Now I'm guessing that I'm able to drag the right panel to a max width of 35-40% for some reason. I have not changed anything in the about:config page. I'm not sure why I can't drag the right panel to cover the 75-80% of the window that I had been able to do.

Is there a setting in the developer tools or on the about:config page that sets the max width that the right hand panel can be dragged to the left?

Hello,

I am dealing with a quite frustrating issue, and I literally cannot do anything to stop it from ruining my messages.

Whenever I manually type in WhatsApp Web or AI chats (like ChatGPT or Claude), Firefox completely hijacks my text box. As soon as I start a line by typing "1", a period, and a single space ("1. "), the browser forces my text into an auto-formatted numbered list.

This isn't just unhelpful; I see it as a genuinely harmful feature. The formatting it forces on me is weird and broken—it frequently adds massive, irrelevant paragraph gaps between list items, completely messing everything up.

I am completely stuck because standard fixes do not work:

If I press Ctrl + Z to undo the auto-formatting, it also deletes the space I typed.

I am not pasting anything; this happens the millisecond I type the spacebar from scratch.

It feels awful to have my manual typing hijacked like this. Users should be able to type a simple number and a period without the browser transforming it into a broken HTML list.

Is there an about:config setting or any way to completely disable this auto-formatting feature so I can just type normally again?

Thank you.

I want to delete Preview Links. I tried going to Settings>General>Browsing, however, there is no "Browsing" section. I have a Linux Mint. I do NOT want Preview Links. Thank you.

Over the past few updates, I’ve noticed an issue with Firefox where it no longer restores my previous session when reopening the browser.

I normally keep four tabs pinned and about five additional tabs open for browsing and work. In the past, I could simply click the X to close Firefox, and when I reopened it, all my tabs that are pinned and unpinned would automatically come back. Recently, this stopped happening. Now, if I close Firefox, it opens with a fresh window instead of restoring my previous tabs.

I’ve already checked the setting under General/Startup, and Open previous windows and tabs is enabled. Because of this issue, I avoid closing Firefox entirely, since rebuilding all my tabs each time has become a hassle.

Is there a way to fix this? Any suggestions would be appreciated.

Thanks :)