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Firefox is being blocked by some websites

  • 10 replies
  • 1 has this problem
  • Last reply by rij

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Firefox is blocked by some websites, saying it is a bot, have you had this happen?


You have been blocked. Why? Something about the behaviour of the browser has caught our attention.

There are various possible explanations for this:

   You are browsing and clicking at a speed much faster than expected of a human being.
   Something is preventing JavaScript from working on your computer.
   There is a robot on the same network (IP XXX.XX.X.XXX) as you.

Having problems accessing the site? ID: 94831524-4e90-ef07-e13c-4a98e17bf644

Firefox is blocked by some websites, saying it is a bot, have you had this happen? You have been blocked. Why? Something about the behaviour of the browser has caught our attention. There are various possible explanations for this: You are browsing and clicking at a speed much faster than expected of a human being. Something is preventing JavaScript from working on your computer. There is a robot on the same network (IP XXX.XX.X.XXX) as you. Having problems accessing the site? ID: 94831524-4e90-ef07-e13c-4a98e17bf644
Attached screenshots

All Replies (10)

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This one --

"Something is preventing JavaScript from working on your computer."

-- could be caused by Firefox's Tracking Protection feature blocking certain scripts on the site. You could try making an exception by clicking the "shield" icon to the left of the lock in the address bar and then clicking the slider switch to allow tracking scripts on that site.

Scripts also can be blocked by ad and content blocking add-ons such as Adblock Plus, Blur, Disconnect, DuckDuckGo Privacy Essentials, Ghostery, NoScript, Privacy Badger, uBlock Origin and uMatrix. Usually you can find a toolbar button for each add-on to manage blocked content in a page. There may or may not be a number on the icon indicating the number of blocked items; you sometimes need to click the button to see what's going on and test whether you need to make an exception for this site.

Any progress so far?

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I turned off the enhanced tracking and the site would still not load. Then I turned off AdBlocker Plus with the same result. I'm trying to work through Malwarebytes now to see if I can allow a domain to go through.

Thanks for your help.

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Allowed Barrons in Malwarebytes, still not working.

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Hmm, maybe it is one of the other issues.

IP Address Block

If you access the site using a VPN, could you test without the VPN?

Also, could you try it in Microsoft Edge or another browser?

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I tried Firefox with VPN on and off, did not work. But Chrome and Edge work fine . . . so I've been keeping Chrome open if Firefox fails. I also removed Adblock Plus and it made no difference on Firefox. I've been with Firefox it seems as long there has been a Firefox, do not really like any of the others.

Not sure what Firefox has done but I highly doubt I am the only one dealing with this.

Again, I appreciate your ideas and feedback.

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barrons Works just fine in Firefox

Check and post your browser console errors if any

Also try download Firefox portable and start from there or just create a new profile from installed one and test

Modified by Vivian

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I don't use Web Developer, I'm just browsing. The site works well on Chrome and Edge but this is not the first site that has this same, exact issue on Firefox with essentially the same wording, something is wrong with the computer or browser that makes them think I'm a bot.

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This page is in Quirks Mode. Page layout may be impacted. For Standards Mode use “”. www.barrons.com Layout was forced before the page was fully loaded. If stylesheets are not yet loaded this may cause a flash of unstyled content. markup.js:250:53 CONTENT_SHELL: Page allowed. Skipping shell injection blocks content-scripts.js:1:54294 TSS: excluded result: true content-scripts.js:1:61930 Layout was forced before the page was fully loaded. If stylesheets are not yet loaded this may cause a flash of unstyled content. markup.js:250:53 CHROME_POLY: Object { menus: Getter & Setter, manifest: Getter & Setter, normandyAddonStudy: Getter & Setter, extension: Getter & Setter, i18n: Getter & Setter, storage: Getter & Setter, test: Getter & Setter, userScripts: Getter & Setter, runtime: {…} } content-scripts.js:1:64919 CONTENT_SHELL: Page allowed. Skipping shell injection blocks content-scripts.js:1:54294 TSS: excluded result: true content-scripts.js:1:61930 downloadable font: Glyph bbox was incorrect (glyph ids 47) (font-family: "Retina" style:normal weight:400 stretch:100 src index:0) source: https://static.captcha-delivery.com/common/fonts/Retina/Retina-Book.woff2 downloadable font: Glyph bbox was incorrect (glyph ids 47) (font-family: "Retina" style:normal weight:500 stretch:100 src index:0) source: https://static.captcha-delivery.com/common/fonts/Retina/Retina-Medium.woff2

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guy36 said

This page is in Quirks Mode. Page layout may be impacted. For Standards Mode use “”. www.barrons.com Layout was forced before the page was fully loaded. If stylesheets are not yet loaded this may cause a flash of unstyled content. markup.js:250:53 CONTENT_SHELL: Page allowed. Skipping shell injection blocks content-scripts.js:1:54294 TSS: excluded result: true content-scripts.js:1:61930 Layout was forced before the page was fully loaded. If stylesheets are not yet loaded this may cause a flash of unstyled content. markup.js:250:53 CHROME_POLY: Object { menus: Getter & Setter, manifest: Getter & Setter, normandyAddonStudy: Getter & Setter, extension: Getter & Setter, i18n: Getter & Setter, storage: Getter & Setter, test: Getter & Setter, userScripts: Getter & Setter, runtime: {…} } content-scripts.js:1:64919 CONTENT_SHELL: Page allowed. Skipping shell injection blocks content-scripts.js:1:54294 TSS: excluded result: true content-scripts.js:1:61930 downloadable font: Glyph bbox was incorrect (glyph ids 47) (font-family: "Retina" style:normal weight:400 stretch:100 src index:0) source: https://static.captcha-delivery.com/common/fonts/Retina/Retina-Book.woff2 downloadable font: Glyph bbox was incorrect (glyph ids 47) (font-family: "Retina" style:normal weight:500 stretch:100 src index:0) source: https://static.captcha-delivery.com/common/fonts/Retina/Retina-Medium.woff2

Hello. Thank you for your report! Can you re-post it here https://bugzilla.mozilla.org/index.cgi for developer review?

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guy36 said

This page is in Quirks Mode. Page layout may be impacted. For Standards Mode use “”. www.barrons.com Layout was forced before the page was fully loaded. If stylesheets are not yet loaded this may cause a flash of unstyled content. markup.js:250:53 CONTENT_SHELL: Page allowed. Skipping shell injection blocks content-scripts.js:1:54294 TSS: excluded result: true content-scripts.js:1:61930 Layout was forced before the page was fully loaded. If stylesheets are not yet loaded this may cause a flash of unstyled content. markup.js:250:53 CHROME_POLY: Object { menus: Getter & Setter, manifest: Getter & Setter, normandyAddonStudy: Getter & Setter, extension: Getter & Setter, i18n: Getter & Setter, storage: Getter & Setter, test: Getter & Setter, userScripts: Getter & Setter, runtime: {…} } content-scripts.js:1:64919 CONTENT_SHELL: Page allowed. Skipping shell injection blocks content-scripts.js:1:54294 TSS: excluded result: true content-scripts.js:1:61930 downloadable font: Glyph bbox was incorrect (glyph ids 47) (font-family: "Retina" style:normal weight:400 stretch:100 src index:0) source: https://static.captcha-delivery.com/common/fonts/Retina/Retina-Book.woff2 downloadable font: Glyph bbox was incorrect (glyph ids 47) (font-family: "Retina" style:normal weight:500 stretch:100 src index:0) source: https://static.captcha-delivery.com/common/fonts/Retina/Retina-Medium.woff2
hello! can you re-post you issue here bugzilla dot  mozilla dot  org  for further developer review? Thanks in advance

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