---
title: Why Does the FreJun SDK Not Work in Firefox or Safari? | Browser Compatibility FAQ
description: The FreJun SDK is currently optimized for Chrome, Edge, and Opera; support for Firefox and Safari may be limited, which can cause it not to work properly in those browsers.
---

[Skip to content](https://knowledge.frejun.com/why-does-the-sdk-not-work-in-firefox-or-safari#main-content)

![FreJun-4](https://knowledge.frejun.com/hs-fs/hubfs/FreJun-4.png?width=265&height=114&name=FreJun-4.png)

Open main navigation

Close main navigation

- [Go to frejun.com](https://frejun.com/)

[Go to frejun.com](https://frejun.com/)

 Hello. How can we help you?

- There are no suggestions because the search field is empty.

1. [Customer Support](https://knowledge.frejun.com/?hsLang=en)
2. [APIs and SDKs FAQs](https://knowledge.frejun.com/apis-and-sdks-faqs?hsLang=en)
3. [FreJun SDK – Edge Case FAQs](https://knowledge.frejun.com/apis-and-sdks-faqs?hsLang=en#frejun-sdk-edge-case-faqs)

# Why Does the FreJun SDK Not Work in Firefox or Safari? | Browser Compatibility FAQ

## The FreJun SDK is currently optimized and fully supported only on Chrome, Edge, and Opera browsers, and its functionality in Firefox or Safari may be limited or not work as expected . This article explains that the SDK’s current browser compatibility is restricted to Chromium‑based browsers (Chrome, Edge, Opera), and users may face issues when trying to use it in Firefox or Safari .

Currently, the SDK is optimized for Chrome, Edge, and Opera. Support for other browsers may be limited.

 

**If you have any more questions or need assistance, feel free to reach out to us at Hello@frejun.com. We’re here to help!**

**[Sign Up Now](https://product.frejun.com/signup)**

- [Support FAQs](https://knowledge.frejun.com/support-faqs?hsLang=en#main-content)

    - [Dashboard FAQs](https://knowledge.frejun.com/support-faqs?hsLang=en#dashboard-faqs)
    - [Call Logs FAQs](https://knowledge.frejun.com/support-faqs?hsLang=en#call-logs-faqs)
    - [Contact List FAQs](https://knowledge.frejun.com/support-faqs?hsLang=en#contact-list-faqs)
    - [Campaigns FAQs](https://knowledge.frejun.com/support-faqs?hsLang=en#campaigns-faqs)
    - [Autodial FAQs](https://knowledge.frejun.com/support-faqs?hsLang=en#autodial-faqs)
    - [Surveys FAQs](https://knowledge.frejun.com/support-faqs?hsLang=en#surveys-faqs)
    - [Users and Teams FAQs](https://knowledge.frejun.com/support-faqs?hsLang=en#users-and-teams-faqs)
    - [User Management Access FAQs](https://knowledge.frejun.com/support-faqs?hsLang=en#user-management-access-faqs)
    - [Settings FAQs](https://knowledge.frejun.com/support-faqs?hsLang=en#settings-faqs)
    - [Chrome Extension FAQs](https://knowledge.frejun.com/support-faqs?hsLang=en#chrome-extension-faqs)
    - [Mobile App FAQs](https://knowledge.frejun.com/support-faqs?hsLang=en#mobile-app-faqs)
    - [Virtual Numbers FAQs](https://knowledge.frejun.com/support-faqs?hsLang=en#virtual-numbers-faqs)
- [General Queries FAQs](https://knowledge.frejun.com/general-queries-faqs?hsLang=en)
- [Sales FAQs](https://knowledge.frejun.com/sales-faqs?hsLang=en#main-content)

    - [Trial FAQs](https://knowledge.frejun.com/sales-faqs?hsLang=en#trial-faqs)
    - [Plans & Pricing FAQs](https://knowledge.frejun.com/sales-faqs?hsLang=en#plans-pricing-faqs)
    - [Virtual number FAQs](https://knowledge.frejun.com/sales-faqs?hsLang=en#virtual-number-faqs)
    - [UAE calling FAQs](https://knowledge.frejun.com/sales-faqs?hsLang=en#uae-calling-faqs)
    - [AI Insights FAQs](https://knowledge.frejun.com/sales-faqs?hsLang=en#ai-insights-faqs)
    - [SMS & MMS FAQs](https://knowledge.frejun.com/sales-faqs?hsLang=en#sms-mms-faqs)
- [Troubleshooting FAQs](https://knowledge.frejun.com/troubleshooting-faqs?hsLang=en)
- [Usage Policies](https://knowledge.frejun.com/usage-policies?hsLang=en)
- [Integration FAQs](https://knowledge.frejun.com/integration-faqs?hsLang=en#main-content)

    - [Hubspot Integration FAQs](https://knowledge.frejun.com/integration-faqs?hsLang=en#hubspot-integration-faqs)
    - [Pipedrive Integration FAQs](https://knowledge.frejun.com/integration-faqs?hsLang=en#pipedrive-integration-faqs)
    - [Salesforce Integration FAQs](https://knowledge.frejun.com/integration-faqs?hsLang=en#salesforce-integration-faqs)
    - [Deskera Integration FAQs](https://knowledge.frejun.com/integration-faqs?hsLang=en#deskera-integration-faqs)
    - [Dynamic 365 Integration FAQs](https://knowledge.frejun.com/integration-faqs?hsLang=en#dynamic-365-integration-faqs)
    - [Zoho Integration FAQs](https://knowledge.frejun.com/integration-faqs?hsLang=en#zoho-integration-faqs)
    - [LeadSquare Integration FAQs](https://knowledge.frejun.com/integration-faqs?hsLang=en#leadsquare-integration-faqs)
    - [Freshworks Integration FAQs](https://knowledge.frejun.com/integration-faqs?hsLang=en#freshworks-integration-faqs)
- [Virtual Numbers](https://knowledge.frejun.com/virtual-numbers?hsLang=en#main-content)

    - [Indian Virtual number](https://knowledge.frejun.com/virtual-numbers?hsLang=en#indian-virtual-number)
    - [Virtual Numbers :- Singapore/Australia/New Zealand](https://knowledge.frejun.com/virtual-numbers?hsLang=en#virtual-numbers-singapore-australia-new-zealand)
    - [UAE Virtual Number](https://knowledge.frejun.com/virtual-numbers?hsLang=en#uae-virtual-number)
    - [Virtual Number- Others](https://knowledge.frejun.com/virtual-numbers?hsLang=en#virtual-number-others)
    - [US Messaging and 10 DLC](https://knowledge.frejun.com/virtual-numbers?hsLang=en#us-messaging-and-10-dlc)
- [Finance and Billing FAQs](https://knowledge.frejun.com/finance-and-billing-faqs?hsLang=en)
- [APIs and SDKs FAQs](https://knowledge.frejun.com/apis-and-sdks-faqs?hsLang=en#main-content)

    - [Authentication & API Access FAQs](https://knowledge.frejun.com/apis-and-sdks-faqs?hsLang=en#authentication-api-access-faqs)
    - [Calling Features FAQs](https://knowledge.frejun.com/apis-and-sdks-faqs?hsLang=en#calling-features-faqs)
    - [User Management – Detailed FAQs](https://knowledge.frejun.com/apis-and-sdks-faqs?hsLang=en#user-management-detailed-faqs)
    - [Call Logs & Analytics FAQs](https://knowledge.frejun.com/apis-and-sdks-faqs?hsLang=en#call-logs-analytics-faqs)
    - [Webhooks FAQs](https://knowledge.frejun.com/apis-and-sdks-faqs?hsLang=en#webhooks-faqs)
    - [Managing Webhooks FAQs](https://knowledge.frejun.com/apis-and-sdks-faqs?hsLang=en#managing-webhooks-faqs)
    - [Supported Webhook Events FAQs](https://knowledge.frejun.com/apis-and-sdks-faqs?hsLang=en#supported-webhook-events-faqs)
    - [Additional Tools FAQs](https://knowledge.frejun.com/apis-and-sdks-faqs?hsLang=en#additional-tools-faqs)
    - [FreJun Softphone Web SDK – FAQs](https://knowledge.frejun.com/apis-and-sdks-faqs?hsLang=en#frejun-softphone-web-sdk-faqs)
    - [FreJun SDK – Edge Case FAQs](https://knowledge.frejun.com/apis-and-sdks-faqs?hsLang=en#frejun-sdk-edge-case-faqs)
- [Partners and Resellers FAQs](https://knowledge.frejun.com/partners-and-resellers-faqs?hsLang=en)
- [FreJun Plans and Pricing](https://knowledge.frejun.com/frejun-plans-and-pricing?hsLang=en#main-content)

    - [FreJun Non India Plans and Pricing](https://knowledge.frejun.com/frejun-plans-and-pricing?hsLang=en#frejun-non-india-plans-and-pricing)
    - [FreJun India Plans and Pricing](https://knowledge.frejun.com/frejun-plans-and-pricing?hsLang=en#frejun-india-plans-and-pricing)
    - [FreJun UAE Plans and Pricing](https://knowledge.frejun.com/frejun-plans-and-pricing?hsLang=en#frejun-uae-plans-and-pricing)
    - [FreJun Teler Pricing for India & UAE](https://knowledge.frejun.com/frejun-plans-and-pricing?hsLang=en#frejun-teler-pricing-for-india-uae)
    - [SIP Trunking Pricing](https://knowledge.frejun.com/frejun-plans-and-pricing?hsLang=en#sip-trunking-pricing)
- [WhatsApp Business Integration FAQs](https://knowledge.frejun.com/whatsapp-business-integration-faqs?hsLang=en)
- [IVR FAQs](https://knowledge.frejun.com/ivr-faqs?hsLang=en)
- [Teler FAQs](https://knowledge.frejun.com/teler-faqs?hsLang=en#main-content)

    - [General](https://knowledge.frejun.com/teler-faqs?hsLang=en#general)
    - [Getting Started & SDKs](https://knowledge.frejun.com/teler-faqs?hsLang=en#getting-started-sdks)
    - [Billing & Credits](https://knowledge.frejun.com/teler-faqs?hsLang=en#billing-credits)
    - [Pricing](https://knowledge.frejun.com/teler-faqs?hsLang=en#pricing)
    - [Coverage & Telephony](https://knowledge.frejun.com/teler-faqs?hsLang=en#coverage-telephony)
    - [Security & Compliance](https://knowledge.frejun.com/teler-faqs?hsLang=en#security-compliance)
    - [Roadmap / Upcoming Features](https://knowledge.frejun.com/teler-faqs?hsLang=en#roadmap-upcoming-features)
    - [Developer Support & SLAs](https://knowledge.frejun.com/teler-faqs?hsLang=en#developer-support-slas)
    - [Integration & Extensibility](https://knowledge.frejun.com/teler-faqs?hsLang=en#integration-extensibility)
    - [Migration & Compatibility](https://knowledge.frejun.com/teler-faqs?hsLang=en#migration-compatibility)
- [Gong Integration](https://knowledge.frejun.com/gong-integration?hsLang=en)

[![Chill listening crop-3](https://knowledge.frejun.com/hs-fs/hubfs/FreJun%20Logo.png?width=163&height=34&name=FreJun%20Logo.png "Chill listening crop-3")](http://frejun.com)

Copyright © 2026, FreJun