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Question

Which of the following web browsers is NOT a proprietary software?

This question was previously asked in
RRB NTPC 2019 CBT 1 Question Paper (8-Mar-2021) (Shift 2)
The correct answer is
Mozilla Firefox

Identifying Non-Proprietary Web Browsers

The question asks to identify the web browser that is NOT proprietary software. Proprietary software is owned by a company or individual, with restrictions on its use, modification, and distribution. Non-proprietary software, often referring to open-source software, allows users to view, modify, and distribute the source code freely.

Browser Analysis

  • Internet Explorer: Developed and owned by Microsoft. It is proprietary software.
  • Mozilla Firefox: Developed by the Mozilla Foundation. It is well-known for being open-source software, meaning its source code is publicly available.
  • Safari: Developed by Apple Inc. It is proprietary software.
  • Opera: Developed by Opera Software. While it incorporates some open-source components, the browser itself is largely proprietary.

Conclusion

Based on the analysis, Mozilla Firefox is the only browser among the options that is fundamentally non-proprietary (open-source).

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