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Clicking "Login with Facebook" does nothing on Firefox, works on Edge

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With Firefox, when I click on "Login with Facebook" on Zomato (zomato.com), nothing happens. However, if I click on "Login with Google" it opens a new window to choose which Google account I want to use. And when I try to do the same on Microsoft Edge it works (both Zomato and Google) so it's not a Zomato problem. I've tried to use Standard Content Blocking, I've disabled the option "Block pop-up windows", and nothing worked. The weird thing is, I could login with Google if I wanted, the window opens, but not with Facebook. This is even more frustrating because I wanted to be automatically logged in, since I'm also logged in on Facebook and it should recognize that I want to use my Facebook account on Zomato. I wanted to insert a screenshot, showing it working on Edge, but I couldn't upload it :/

Thank you so much in advance!

With Firefox, when I click on "Login with Facebook" on Zomato (zomato.com), nothing happens. However, if I click on "Login with Google" it opens a new window to choose which Google account I want to use. And when I try to do the same on Microsoft Edge it works (both Zomato and Google) so it's not a Zomato problem. I've tried to use Standard Content Blocking, I've disabled the option "Block pop-up windows", and nothing worked. The weird thing is, I could login with Google if I wanted, the window opens, but not with Facebook. This is even more frustrating because I wanted to be automatically logged in, since I'm also logged in on Facebook and it should recognize that I want to use my Facebook account on Zomato. I wanted to insert a screenshot, showing it working on Edge, but I couldn't upload it :/ Thank you so much in advance!

Chosen solution

I opened the Web Inspector for the "Login with Facebook" button and discovered that the site has a "Javascript:Void(0)" syntax error. A common reason for a void error in Javascript is missing opening or closing brackets ( the "{" or "}" character). This is a problem for the website not Firefox.

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Additional System Details

Installed Plug-ins

  • Shockwave Flash 32.0 r0

Application

  • Firefox 66.0.3
  • User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:66.0) Gecko/20100101 Firefox/66.0
  • Support URL: https://support.mozilla.org/1/firefox/66.0.3/WINNT/en-GB/

Extensions

  • Ahoy! 2.0.0 (@ahoy)
  • Browsec VPN - Free and Unlimited VPN 3.22.5 (browsec@browsec.com)
  • Enhancer for YouTube™ 2.0.87.1 (enhancerforyoutube@maximerf.addons.mozilla.org)
  • Facebook Container 1.6.5 (@contain-facebook)
  • Firefox Pioneer 1.0 (pioneer-opt-in@mozilla.org)
  • Floating Player: YouTube, Twitch.tv, etc. 2.0.32 ({a37dbe97-b3d9-4641-9c9c-9e790132e51b})
  • Gesturefy 2.0.4 ({506e023c-7f2b-40a3-8066-bc5deb40aebe})
  • Ghostery – Privacy Ad Blocker 8.3.1 (firefox@ghostery.com)
  • HTTPS Everywhere 2019.1.31 (https-everywhere@eff.org)
  • Open image in a new tab 0.1 ({7276f3bb-de56-4b5a-b940-88b62731d409})
  • S3.Translator 6.19 (s3google@translator)
  • Tabliss 1.17.0 (extension@tabliss.io)
  • Tomato Clock 5.0.3 (jid1-Kt2kYYgi32zPuw@jetpack)
  • Web Paint 1.2.6 (jid1-0dhOSYKGj326og@jetpack) (Inactive)

Javascript

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Modified Preferences

Misc

  • User JS: No
  • Accessibility: No
jscher2000
  • Top 10 Contributor
8577 solutions 70121 answers

Hi InesVilhena, thank you for sharing your add-on list. I think this may be caused by the Facebook Container extension, because it should stop the cross-site communication used by "Login with Facebook". I don't know whether the extension is flexible enough to let Zomato tap into your Facebook account, but not other sites. Does it have any options to make an exception?

Hi InesVilhena, thank you for sharing your add-on list. I think this may be caused by the '''Facebook Container''' extension, because it should stop the cross-site communication used by "Login with Facebook". I don't know whether the extension is flexible enough to let Zomato tap into your Facebook account, but not other sites. Does it have any options to make an exception?
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Question owner

Thank you very much for the quick reply!

I have unistalled the extension, but it still doesn't work :(

Thank you very much for the quick reply! I have unistalled the extension, but it still doesn't work :(
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user1632815 2 solutions 6 answers

Chosen Solution

I opened the Web Inspector for the "Login with Facebook" button and discovered that the site has a "Javascript:Void(0)" syntax error. A common reason for a void error in Javascript is missing opening or closing brackets ( the "{" or "}" character). This is a problem for the website not Firefox.

I opened the Web Inspector for the "Login with Facebook" button and discovered that the site has a "Javascript:Void(0)" syntax error. A common reason for a void error in Javascript is missing opening or closing brackets ( the "{" or "}" character). This is a problem for the website not Firefox.
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jscher2000
  • Top 10 Contributor
8577 solutions 70121 answers

Hi jridgers, your inspector also should show an "event" badge, and if you click that, the mouseup event that triggers the function of the button. (Sample screenshot attached) Is that missing or blocked on yours?

Hi jridgers, your inspector also should show an "event" badge, and if you click that, the mouseup event that triggers the function of the button. (Sample screenshot attached) Is that missing or blocked on yours?
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jscher2000
  • Top 10 Contributor
8577 solutions 70121 answers

Hi InesVilhena, when I click the button, I get a message about a blocked popup. (Screenshot attached) Do you see anything like that, for example, the little popup window icon at the left end of the address bar?

Hi InesVilhena, when I click the button, I get a message about a blocked popup. (Screenshot attached) Do you see anything like that, for example, the little popup window icon at the left end of the address bar?
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user1632815 2 solutions 6 answers

I see all of this, but I think the issue is that there is to "Click" event coded on their site. If you inspect the element for the "Continue with Google" you'll see there is a "Click" event which is absent for the Facebook button.

I see all of this, but I think the issue is that there is to "Click" event coded on their site. If you inspect the element for the "Continue with Google" you'll see there is a "Click" event which is absent for the Facebook button.
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