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When Accessing Gmail Page get Javascript Application: Syntax Error

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  • 7 have this problem
  • Last reply by DriftMGR

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When Accessing Gmail Page get Javascript Application: Syntax Error Using Nightly 20.0a1 Also: No search from nightly standard search page. have to use other google Start page for search to work. Stack Overflow? Profile errors?

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If there is a problem with searching via the default about:home page then try to reset the search engine used on the about:home page.

Reset the browser.startup.homepage_override.mstone pref via the right-click context menu to the default on the about:config page and close and restart Firefox to restore the about:home page to its default.

  1. Open the about:config page via the location bar
  2. Type in the Filter bar: mstone
  3. Right-click the browser.startup.homepage_override.mstone line and select: Reset
  4. Close and restart Firefox

If this didn't help then delete the delete the chromeappsstore.sqlite file in the Firefox Profile Folder and repeat the above.

Start Firefox in Safe Mode to check if one of the extensions (Firefox/Tools > Add-ons > Extensions) or if hardware acceleration is causing the problem (switch to the DEFAULT theme: Firefox/Tools > Add-ons > Appearance).

  • Do not click the Reset button on the Safe mode start window or otherwise make changes.
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Resolved the Syntax Error. Disabled Extension: Integrated GMail 2.8.8.