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Obscure canvas rendering issue

Hello, I have created a webpage with a canvas element that allows the user to draw an irregular path by pressing down the mouse, similar to the free drawing of a paint … (lire la suite)

Hello,

I have created a webpage with a canvas element that allows the user to draw an irregular path by pressing down the mouse, similar to the free drawing of a paint application. The issue is that the very first time that the user presses the mouse, the line stops abruptly, while the next times the lines are drawn correctly. The events seem to fire correctly and the page works fine at Chromium, so it seems to be a Firefox issue. You can find the html page below. I am curious, what could be the problem?

<!DOCTYPE html>
<html lang="el">

<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Canvas</title>
  <style>
    #canvas {
      background-color: whitesmoke;
      border: solid 2px brown;
    }
  </style>
</head>

<body>
  <canvas id="canvas"></canvas>

  <script>
    function startDrawing(e) {
      isDrawing = true;
      context.beginPath();
      context.moveTo(e.offsetX, e.offsetY);
    }

    function draw(e) {
      if (isDrawing) {
        context.lineTo(e.offsetX, e.offsetY);
        context.stroke();
      }
    }

    function stopDrawing(e) {
      console.log("stopped drawing")
      isDrawing = false;
    }

    const canvas = document.getElementById('canvas');
    const context = canvas.getContext('2d');
    var isDrawing = false;
    canvas.width = 1000;
    canvas.height = 1000;
    context.strokeStyle = "#913d88";
    context.lineWidth = 2;
    canvas.onmousedown = startDrawing;
    canvas.onmouseup = stopDrawing;
    canvas.onmousemove = draw;
  </script>
</body>

</html>

Demandé par ngiatsog il y a 1 jour

Dernière réponse par ngiatsog il y a 5 heures

download always failed

i need some help with my firefox browser. all of a sudden my firefox browser wont download any files from anywhere but if i try to use the save image as on an image firef… (lire la suite)

i need some help with my firefox browser. all of a sudden my firefox browser wont download any files from anywhere but if i try to use the save image as on an image firefox would download them. weirdest thing is other browsers are fine when downloading files.

Demandé par lukas.jiun il y a 6 heures

mylotto.co.nz is blocking Firefox browser and has been for months

The website mylotto.co.nz has been blocking Firefox for many months now and when I rang them to find out what the problem is they just say they are having problems but it… (lire la suite)

The website mylotto.co.nz has been blocking Firefox for many months now and when I rang them to find out what the problem is they just say they are having problems but it was obvious that the person there was reading a script and fobbing me off. This has been going for many months now a problem would have been fixed by now. I would like to know if you can bring pressure to bear on them to get reinstated again. I have attached a screenshot of the message from their site. Thanking you. Murray

Demandé par murjan5 il y a 8 heures

Dernière réponse par TyDraniu il y a 6 heures

Log in

I can not log in to Outlook anymore on my computer when I use Firefox, but it is possible when I use Edge. But I prefer Firefox. What to do about this? Billy … (lire la suite)

I can not log in to Outlook anymore on my computer when I use Firefox, but it is possible when I use Edge. But I prefer Firefox. What to do about this?

Billy

Demandé par billylarsson il y a 6 heures

Dernière réponse par Paul il y a 6 heures

Blocker: Mozilla Firefox causes rows overlapping

Dear Support Team, After updating to last Mozilla Firefox version (126.0.1) all my ngx-datatable tables are overlapping all rows over the first one even if the entire he… (lire la suite)

Dear Support Team,

After updating to last Mozilla Firefox version (126.0.1) all my ngx-datatable tables are overlapping all rows over the first one even if the entire height of the table is correct calculated.

This is a blocking point. I need assistance urgently.

Demandé par Stefan Curiban il y a 1 jour

Dernière réponse par Stefan Curiban il y a 6 heures

Having a trouble to download with firefox's download

Didn't have this problem before but after a couple days ago, I didn't know what changes happened to my computer but most of the program wouldn't work except I have to run… (lire la suite)

Didn't have this problem before but after a couple days ago, I didn't know what changes happened to my computer but most of the program wouldn't work except I have to run it as administrator. The download problem occurred when suddenly my FF always froze no matter if I closed it or not. So I just refresh my FF and copy my profile from the old backup data that FF generated and just pasted all of them on my new profile. The problem is that after I tries to download warcraft 3 maps from google drive, the download always occurs as failed. I don't have this problem when I tried it with Edge. Running FF as admin doesn't worked either. Neither as when I run FF as refresh without any extension. Downloading stuffs with IDM (Internet Download Manager) does not have any problems. Just now, I try to download a .xlsx files from my workplace websites. After I click on the download or the file itself, nothing occurs as if nothing happened. This is giving me a headaches so I came here to give it a try if anyone can help me fix this problem.

Demandé par Kongkit Vaskul il y a 7 heures

  • Résolu

Corrupted PDF Downloads from Intranet sites after 125.0.1 Update

Prior to update 125.0.1 corporate intranet users could download PDF files from our Line of Business applications / Webpages. Today after the latest update the PDF files … (lire la suite)

Prior to update 125.0.1 corporate intranet users could download PDF files from our Line of Business applications / Webpages. Today after the latest update the PDF files download but are corrupted. The site was added to the trusted webpage without improvement.

Adobe Acrobat Reader could not open ********.pdf because it is either not a supported file or because the file has been damaged

Demandé par Jeff@work il y a 1 mois

Réponse de NoahSUMO il y a 1 mois

firefox ate my history

after downloading and installing v.126 of firefox, my history has disappeared. the browser is not generating new history from web site visits. the history is fixed perman… (lire la suite)

after downloading and installing v.126 of firefox, my history has disappeared. the browser is not generating new history from web site visits. the history is fixed permanently on a single web address. this is the web address of a site that is in my toolbar. this site cannot be deleted from the history. this site cannot be deleted through the preferences menu. the same site shows in the history file as the only site visited in the past several months, even though i have not visited that site in the past several months. the browser does not show my browsing history. the browser does not create a browsing history. my history function is permanently broken.

help?

Demandé par drollere il y a 22 heures

Dernière réponse par drollere il y a 8 heures

Firefox Browser Defaults to the Wrong Time Zone

I've seen a few submissions describing the same or similar issues, but is there a consistent, effective way of changing the time zone in Firefox? It keeps defaulting to t… (lire la suite)

I've seen a few submissions describing the same or similar issues, but is there a consistent, effective way of changing the time zone in Firefox? It keeps defaulting to the wrong time zone (despite everything else on my system displaying the correct time zone) and has been doing so for weeks. Solutions appreciated!

Demandé par linsilver888 il y a 8 heures

binance problem with live price

Hi support from yesterday firefox has a problem Different computers Different internet same problem Different versions of Brouzer I have the same problem with both of you… (lire la suite)

Hi support from yesterday firefox has a problem Different computers Different internet same problem Different versions of Brouzer I have the same problem with both of you yesterday is a problem Binance prices does not cope in Live not only the prices but other items do not work. Tested on another brouzer neatly doing some problem to you

Thank's

Demandé par nebojsa3 il y a 9 heures

One site blank in Linux FF but not in Windows FF

https:\\archive.org works perfectly in Firefox on Win-10, but on a new Linux Mint install, (with default Firefox as included), this particular website simply displays as… (lire la suite)

https:\\archive.org works perfectly in Firefox on Win-10, but on a new Linux Mint install, (with default Firefox as included), this particular website simply displays as a blank white screen. Every other website I try on the Linux install works perfectly; it is only this one website which does not work.

There are no add-ons, no proxies, no security suites, nothing extra. I cleared all cookies and cache. Tried running FF in Protected Mode. Nothing seems to fix it.  There are no error messages displayed - just a blank white screen.

And, to make it worse, I am not particularly computer-literate, (I'm 82 years old...), so you will have to give me simple guidance if I need to get involved with deeper logging etc.

Demandé par dmaxwell1 il y a 1 jour

Dernière réponse par jonzn4SUSE il y a 10 heures

126.0.1 (64-bit) so many problems

I have been using Firefox for years without any problem but 126.0.1 (64-bit) is making me to consider stopping it. I am having issues playing live cams, getting some webs… (lire la suite)

I have been using Firefox for years without any problem but 126.0.1 (64-bit) is making me to consider stopping it. I am having issues playing live cams, getting some websites running properly, authentication issues, etc...etc..

Why?

Demandé par aramartis il y a 11 heures

Dernière réponse par jonzn4SUSE il y a 11 heures

Sky ID on my iPhone

I have received two emails from Sky regarding updating my Sky ID on my iPhone to enable continuing use of Yahoo emails. However, when I click on the link given there is a… (lire la suite)

I have received two emails from Sky regarding updating my Sky ID on my iPhone to enable continuing use of Yahoo emails. However, when I click on the link given there is a Google error message denying access owing to a violation of Terms of Service. This means I am unable to update and could have future problems with access to Yahoo emails on my iPhone. Can you help? Alan Warburton.

Demandé par warburton-alan il y a 1 jour

Dernière réponse par cor-el il y a 11 heures

Firefox doesn't work when i installed League of Legends with Vanguard anti cheat

Hello, I am experiencing an issue related to the Vanguard anti-cheat system used by Riot Games, specifically in relation to League of Legends. After installing the game … (lire la suite)

Hello,

I am experiencing an issue related to the Vanguard anti-cheat system used by Riot Games, specifically in relation to League of Legends. After installing the game and Vanguard, I am unable to open Firefox. When I try to launch Firefox, nothing happens. However, if I change the name of the firefox.exe file, I can start Firefox on a different profile, but it only works for a short period before becoming unresponsive. None of the options or tabs respond after that.

Could you please provide assistance on how to resolve this issue?

Thank you.

Demandé par bambodinho il y a 1 jour

Dernière réponse par bambodinho il y a 14 heures

Firefox forgets my passwords

Hello, My password saved are deleted every time I close FF. It used to be manageable because Google and other sites didn't require me to fill my passwords (cookies did t… (lire la suite)

Hello,

My password saved are deleted every time I close FF. It used to be manageable because Google and other sites didn't require me to fill my passwords (cookies did the trick I suppose) but now I also loose access to gmail and Youtube every time I close FF. It's annoying to have to use 2FA every damn time. And keeping the passwords available.

I've tried every answer I found by looking around :

- tried to start in safe mode - disable hardware acceleration - I have no extensions

FF saves the passwords correctly (at least they appear in the saved password tab) but they are erased every time I restart FF. The cookies aren't automatically deleted (FF remembers my browsing history) but I need to relog into Google.

I getting frustrated.

Demandé par fr.bergmans il y a 5 jours

Dernière réponse par fr.bergmans il y a 15 heures

stop video autoplay

the only autoplay setting i can find is under privacy and security. the page shows DEFAULT FOR ALL WEBSITES: Block Audio and Video, but videos still open and play. the pa… (lire la suite)

the only autoplay setting i can find is under privacy and security. the page shows DEFAULT FOR ALL WEBSITES: Block Audio and Video, but videos still open and play. the page does not retain the change when i select the button REMOVE ALL WEBSITES. this problem has not been happening for years. it may have begun about six months ago. thank you for your time

Demandé par ekworks il y a 21 heures

Dernière réponse par cor-el il y a 15 heures

XULRunner Error Pop-Up when starting and closing Firefox

Lately, I have been getting a pop-up error when I start and close Firefox. The error reads: "XULRunner Could not determine any profile running in backgroundtask mode!"… (lire la suite)

Lately, I have been getting a pop-up error when I start and close Firefox. The error reads: "XULRunner Could not determine any profile running in backgroundtask mode!"

I have found posts such as this one: https://support.mozilla.org/en-US/questions/1398228 and other posts suggesting to disable the scheduled task in Windows Task Scheduler, but none of the solutions have worked thus far. Anyone know of any other solutions?

Demandé par johann.e.munguia il y a 20 heures

Dernière réponse par cor-el il y a 15 heures