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How to install square tabs in quantum

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I installed Quantum and and after watching a video created a chrome directory and added a css file which placed the tabs on the bottom (where they should be). There is now just one small problem. The tabs now appear curvy and make me gag whenever I look at them. Is there a way to make them square and more business-like? Thank you in advance for your help.

I installed Quantum and and after watching a video created a chrome directory and added a css file which placed the tabs on the bottom (where they should be). There is now just one small problem. The tabs now appear curvy and make me gag whenever I look at them. Is there a way to make them square and more business-like? Thank you in advance for your help.

Todas las respuestas (2)

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What kind of system has this problem of unwanted custom style rules? Your Firefox identified itself as Firefox 52 Extended Support Release running on Windows Vista.