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Unable to select tab in FF developer edition 40.0a mac 10.9.5

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Neogene
Neogene
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In Firefox developer edition 40.0a on Mac 10.9.5 Firefox Developer Theme doesn't allow to select tabs, only to close them clicking on the x icon, i had to switch to default theme.

In Firefox developer edition 40.0a on Mac 10.9.5 Firefox Developer Theme doesn't allow to select tabs, only to close them clicking on the x icon, i had to switch to default theme.

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cor-el
cor-el
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  • Top 10 Contributor
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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